Question

Body moving with an initial velocity of 5ms-1 attains a velocity of 15ms-1 in 3 s. then the displacement is

Answer 1

30

Explanation:

a=v2-v1/t=15-5/3=10/3

s=ut+1/2at^2

s=5×3+1/2×10/3×9

s=15+15

s=30