Question

Two vehicles are travelling at 13 m/s. The driver of the truck then accelerates at 1.2 m/s? until both vehicles are travelling at 20 m/s. Calculate the time taken for this acceleration.

Answer 1

v = u + a t

20 = 13 + 1.2 t

20 - 13 = 1.2 t

7/1.2 = t

5.83 = t