04-2 displacement (3)

8/2/2019 04-2 Displacement (3)

1/25

Distance and displacements


2/25

Simon is in Causeway Bay. He needs to

1 take a book to Mary at the exit gate ofMongkok MTR, and

2 pass a gift to Jenny at the HKEAA in

Wan Chai.

Wan Chai Causeway Bay

Mongkok


3/25

$3.8Wan ChaiCauseway Bay

$10.0Wan ChaiMongkok$10.0MongkokCauseway Bay

Adult FareToFrom

(a) What is the minimum fare for Simonswhole journey?

He doesnt go out of thegates at Mongkok station.

He doesnt go out of thegates at Mongkok station.


4/25

$3.8Wan ChaiCauseway Bay

$10.0Wan ChaiMongkok$10.0MongkokCauseway Bay

Adult FareToFrom

Warm-up(a) What is the minimum fare for Simons

whole journey?

his position changes from Causeway Baystation to Wan Chai station.

his position changes from Causeway Baystation to Wan Chai station.

For his whole journey,

For his whole journey,


5/25

More should be paid forlonger distance travelled.

Agree

(b) Do you agree with the followingstatements about travelling by MTR?

Disgree

Fare depends on wherehe passes the exit gateonly.


6/25

SI unit: metre

Symbol: m North Pole X

Y

1 Unit of length

1 m was defined as 107 ofa quadrant of the Earth.

1 m was defined as 107 ofa quadrant of the Earth.

Old definition:

But no need to rememberthe exact value

But no need to rememberthe exact value


7/25

Lengthof a straight line going from theold to the new positions

Direction of the movement

2 Displacement and distance

Displacement requires :

i.e. size/magnitude

Simulation
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


8/25

yourhome

yourschool

A displacement has

Size = lengthof this arrow

displacement fromhome to school

displacement fromhome to school


To go to school from home...

size &direction.
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


9/25

Distance = length ofpathyou travelled

( size ofdisplacement)

l1l2

l3


To go to school from home...yourhome

yourschool

= l1 + l2 + l3
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


10/25

Vectora quantity described by its

E.g.displacement,

3 Vectors and scalars

&magnitude (size)direction

velocity,force
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


11/25

A vector can be represented by an arrow.

It tells us:

length = magnitude

direction

http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


12/25

displacement written asAB

startpoint

endpoint

A B


To go fromAto B...

path taken

displacement
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


13/25

quantity described by its magnitude

(size) only


Scalar

E.g. temperature,

mass, energydistance, speed,
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


14/25

total distance = ?

total displacement = ?

= (3 + 4) km = 7 km

total distance

total displacement= (3 + 4) kmnorth

= 7 kmnorth

N

4 km

7 kmnorth

3 km

4 Adding displacementsa Graphical methodA car travels 4 km northA car travels 4 km north then 3 km north.
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


15/25

4 Adding displacements

A car travels 4 km northA car travels 4 km north then 3 km south.

4 km

1 kmnorth

3 km

total distance = ?


= (3 + 4) km = 7 km

total distance

total displacement= (3 + 4) kmnorth

= 1 kmnorth

N

a Graphical method
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


16/25

4 Adding displacements

A car travels 4 km northA car travels 4 km north then 3 km east.

4 km

3 km

5 km

total distance = ?


= (3 + 4) km = 7 km

total distance

total displacement= 5 km37 east of north(by measurement)

N

a Graphical method
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


17/25

tip ofp joined to tail ofq

p q

p + q

Tip-to-tail method:

4 Adding displacement

a Graphical method
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


18/25

d5 km

4 Adding displacementsb Algebraic methodIt is easy to add displacements if they areperpendicular to each other.

E.g.

N

4 km

3 km

d2 = 42 + 32

d= 5 km

= 37tan =

34
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


19/25

A girl cycles a circular track of diameter 70 m

(a)Distance travelled= ?Distance travelled

= perimeter of track= 70

= 220 m

Example 2

and stops at the starting point.

70 m
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


20/25

it is becauseshe goes backtothe startingposition.

(b) Does she change her position?

No,

Example 2

70 m
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


21/25

A car travels 5 km north and 4 km east.

(a) Total distance travelled = ?

Total distance

= 5 + 4 = 9 km

5 km

4 km

Example 3

N
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


22/25

(c) What is her displacement?

Her overall

displacement

= 0 m

Example 2

70 m
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


23/25

(b) What is the displacement?

22 45 +

6.4 km

size =

Example 3

= 6.40 km

A car travels 5 km north and 4 km east.

N

5 km

4 km

5

4 =

38.7tan =

Total displacement:

6.40 km 38.7 east of north
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


24/25

60

o

1 m

Q1 A ball suspended...

A ball hung by a string swings from Xto Y.

1 mX Y

What is the size ofthe displacement of

the ball?

A /3 m

B 1 m

C 1 m towardsthe right
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe


25/25

Q2 Is the speed limit...

Is the speed limit a vector or a scalar?

Scalar!Scalar!
http://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exehttp://var/www/apps/conversion/current/sim/sim0401.exe

04-2 displacement (3)

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