Question

A force of 25N acts for 15 sec on a body of
mass 15 kg which is initially at rest Calculate
(a) final velocity of the body
(b) the displacement of the body​

Answer 1

hope u like my explanation

Answer 2

Answer:

Given F=25N, m(mass) =15kg, u=0m/s, t(time) =15sec

Explanation:

F=ma => 25N=15 *a(acceleration)

a=25/15 =>> a=1.6m/s^2

a=v-u/t => 1.6=v-0/15 => v=1.6×15=24

therefore v=24m/s

here distance will be equal to displacement,

s=ut+1/2at^2

s=0×15+1/2×1.6×15×15

s=180m

Answer final velocity =24m/s

displacement=180m