Question

A car increase velocity from 30 m/s to 60 m/s in 4 seconds

Answer 1

Answer:

Acceleration = 7.5

Explanation:

Vf = 60m/s

Vi = 30m/s

t   = 4s

$Acceleration = \frac{Velocity Change}{Time Change}\\ a = \frac{60m/s-30m/s}{4s}\\ a = \frac{30m/s}{4s}\\ a = 7.5m/s^2\\ or a = 8m/s^2$