The mass of a body is 200 kg and it is accelerated uniformly from a velocity of 4 m/s to 6 m/s in 5 sec. Find the magnitude of the force exerted on the body. Also find the initial momentum.
1
80 N, 800 kg.m/s
2
50 N, 400 kg.m/s
3
50 N, 600 kg.m/s
4
80 N, 1200 kg.m/s