Question

a force of 20n act on a body of mass 4 kg for 5 seconds initially at rest calculate the velocity acquired by the body and change its momentum of the body​

Answer 1

Answer:

Hi.WE KNOW THAT, F=Ma .so F={M×(V-U)} ÷T. THEN WE WILL GOT V=25 m/s. The change of its momentum is =MV-MU =4×25-4×0=100 .I THINK IT WILL HELP YOU.PLEASE FOLLOW ME