Question

A force of 15N acts on a body of 8 kg for 8 sec find the kinetic energy acquired by the body in 8 sec

Answer 1

just use half MV square but before that use force=mass into acceleration which will give u and acceleration as 15/8. then use v=u plus at
which will give u v=15
then substitute the values in half MV square and you will get the answer as 4 x 225 which is 900.