1.3 Do Now

Match the following quantities with their symbols

• v_i

• distance

• t

• initial velocity

  (before)

• average velocity

• d

• final velocity

  (after)

• v_f

• time

What is the speed of car Y? Show appropriate units.

Describe what is happening to the speed of car B? How do you know from the graph? (as time increases...)

What is the equation for average speed?

Match the following quantities with their definitions

• speed

• distance traveled / time taken

• acceleration

• speed in a given direction

• motion sensor

• an object that measures distance using sound

• velocity

• change in velocity / time taken

• distance

• the length of the actual path an object takes