Question

A body started from rest. After displacement of 50m its velocity is found to be 20m/s. Find the acceleration of the body​

Answer 1

Explanation:

Suppose the acceleration is a then using the second equation of motion, s=ut+

2

1

at

2

and putting t=2sec and u=10m/s

we get 20=10×2+a×2

or a=0 that is uniform motion.