Question

A car accelerates from 0 m/s to 30 m/s in 8
seconds. What was its acceleration?

Answer 1

a=v-u/t
=30-0/8
=30/8
=3.75m/s^2

Answer 2

Acceleration = (change of speed) / (time for the change)

Change in speed = (30 - 0) = 30 m/s.
Time for the change = 8 sec.

Acceleration = 30/8 = 3.75 m/s per second.