in the study of kinematics, we consider a moving object as a particle
DESCRIPTION
Displacement. . v. In the study of kinematics, we consider a moving object as a particle. Kinematics in One Dimension (Phy 2053) vittitoe. Displacement. The displacement of a particle is defined as its change in position. x. (m). - 6. - 4. - 2. 0. 2. 4. 6. D x = x - x o - PowerPoint PPT PresentationTRANSCRIPT
v
In the study of kinematics, we consider a moving object as a particle.
Displacement
Kinematics in One Dimension (Phy 2053) vittitoe
0 2 4 6246
x
Displacement
The displacement of a particle is defined as its change in position.
(m)
x = x xo
= 6 m 2 m = 4 m (West)
0 2 4 6246
x
The displacement of a particle is defined as its change in position.
(m)
x = x xo
= m m = m (west)
Displacement
x = x xo
= m-2m = - m (East)distance =? ….travels 2m to 6m = 4m,
then travels from 6m to -4m, which is 10mTotal distance x = 14m
0 2 4 6246
x
The displacement of a particle is defined as its change in position.
(m)
x = x xo
= ( m) (6 m) = 8 m (west)
Displacement
m 40m 03m 70 xΔxΔxΔ 21net
EastWest
70 m
30 m
DisplacementEast40 m
Displacement
A student walks 70 m East, then walks 30 km West.What is the magnitude of the students net displacement?
A) 30 m
B) 40 m
C) 70 m
D) 100 m
Graph on SB
Average speed
The average speed of a particle is defined as
time totaldistance totalspeed Average
Velocity
Average velocity
The average velocity of a particle is defined as
xv
txvx
12
12ttxx
Velocity
The displacement versus time for a certain particle moving along the x axis is shown below. Find the average velocity in the time intervals
(a) 0 to 2 s
(b) 0 to 4 s
(c) 2 s to 4 s
(d) 4 s to 7 s
(e) 0 to 8 s.
Motion Diagrams
x
t
txv
sm 0.5
02010v
Kinematics in One Dimension (Phy 2053) vittitoe
The displacement versus time for a certain particle moving along the x axis is shown below. Find the average velocity in the time intervals
(a) 0 to 2 s
(b) 0 to 4 s
(c) 2 s to 4 s
(d) 4 s to 7 s
(e) 0 to 8 s.
Motion Diagrams (con’t)
x
t
txv
sm 25.1
0405v
Kinematics in One Dimension (Phy 2053) vittitoe
The displacement versus time for a certain particle moving along the x axis is shown below. Find the average velocity in the time intervals
(a) 0 to 2 s
(b) 0 to 4 s
(c) 2 s to 4 s
(d) 4 s to 7 s
(e) 0 to 8 s.
Motion Diagrams (con’t)
x
t
txv
sm 5.2
24105v
Kinematics in One Dimension (Phy 2053) vittitoe
The displacement versus time for a certain particle moving along the x axis is shown below. Find the average velocity in the time intervals
(a) 0 to 2 s
(b) 0 to 4 s
(c) 2 s to 4 s
(d) 4 s to 7 s
(e) 0 to 8 s.
Motion Diagrams (con’t)
x
t
txv
sm 33.3
4755v
Kinematics in One Dimension (Phy 2053) vittitoe
The displacement versus time for a certain particle moving along the x axis is shown below. Find the average velocity in the time intervals
(a) 0 to 2 s
(b) 0 to 4 s
(c) 2 s to 4 s
(d) 4 s to 7 s
(e) 0 to 8 s.
Motion Diagrams (con’t)
t
txv
sm 0.0
0800v
Kinematics in One Dimension (Phy 2053) vittitoe