Question

a motorcycle travels west at a speed of 15 m/s. the driver then reverses the direction and goes east at 17 m/s. what is the change in the velocity of the motorcycle?

Answer 1

Step-by-step explanation:

let east be the positive direction

Δv = vf - vi = 17 m/s - (-15 m/s) = 32 m/s

if you let west be the positive direction, then

Δv = -17 m/s - 15 m/s = -32 m/s