Adding Vectors at Right Angles

Instructor: Ms. Chase

Are You Prepared?

• Reference tables http://www.ncpublicschools.org/docs/accountability/testing/eoc/Physics/physicsreferencetable.pdf

• Pencil• Paper• Online calculator (if needed)

http://www.ecalc.com/

If vectors are at right angles (90)–move the vectors and place them

head to tail –draw resultant from tail of the first to

head of the last–use Pythagorean theorem to find

resultant–use tan = opposite/adjacent to find

direction

Demonstration

Vector addition at right angles is similar to finding the displacement:

http://www.youtube.com/watch?v=gVujFPpiLG0

Practice

Let’s do some practice problems…

Homework

Print off the “Vectors at right angles” worksheet, complete and bring with you to the next lesson.

Physics

is

fun!