The momentum of a body a mass 5 kg is 10 kg m/s. A force of 2 N acts on the body in the direction of motion for 5 s, the increase in the kinetic energy is
15 J
50 J
30 J
none of these
please tell me the solution of this ouestion . first i will use the formula p=mv then from there v=2 then what i should do ??????????