Question 337108
Starting from rest, a car accelerates at a rate of 4.2 m/s2 for a time of 5 seconds.  What is it's velocity at the end of this time?


V = Vo + at

V = end velocity, Vo = initial velocity, a = acceleration, t = time

Vo = 0 m/s, a = 4.2 m/s^2, t = 5 seconds

V = 0 + 4.2 * m/s^2 * 5 * s
V = 21 m/s