Question

A body initially moving with a speed of 20m/s covers a distance of 150m after 5 sec .What is the acceleration of the body?

Answer 1

Answer:

a=4m/s2

Explanation:

Vi= 20m/s

S=150 m

t= 5 sec

a=?

using 2nd equation of motion;

S= Vit+0.5at^{2}

putting values

150= (20)(5)+0.5(a)($5^{2}$)

150-100= 12.5a

50/12.5 =a

4m/s2=a