Velocity

Cliff Notes

I. Vectors

A. Velocity is represented by a vector, which looks like an arrow coming out of the object

B. Vectors tell us two things: direction and magnitude

C. Examples: person -->

car ------>

cheetah ----------->

bullet --------------->

*see "Worksheet on Vectors" below for additional explanations

II. Velocity

A. Change in position over time

B. Velocity has two components: speed and direction

C. How are speed and velocity related? See below

D. Δ position = final position - initial position

so...v = Δ position = final position - initial position = Δd

time time t

Attachments

Worksheet on Vectors - additional information on vectors and how they work

Displacement and Velocity Worksheet - practice problems with velocity

Speed and Velocity Worksheet - additional practice with velocity. Only #7 and 8 are used as examples in class, the other problems are somewhat confusing