Question

A sprinter starts from rest and reaches a speed of 15 m/s in 4.25 s. Find his acceleration

Answer 1

a=3.53 m/s^2

Step-by-step explanation:

Vo=0 m/s (because he is not moving at the start)

V1=15 m/s

t= 4.25 s

a = (V1-Vo) / t = 15/4.25 = 3.53 m/s^2