Question

A body of uniform acceleration describes 4m in 3rd second, 12m in 5th second, find acceleration

Answer 1

Answer:

S = V t + 1/2 a t^2

S3 = V2 (1) + a (1) /2 = 4          distance traveled in third second

S5 = V4 (1) + a (1) /2 = 12          distance traveled in fifth second

S5 - S3 = V4 - V2 = 8

Since the acceleration is uniform V4 - V2 = 2 a (2) = 8

a = 4 m/s^2