0.05 kg bullet is fired to the north from a 4.0 kg rifle that is initially at rest. The

bullet leaves the rifle with a momentum of 20 Ns. Determine the total momentum of the bullet-and-rifle before the bullet is fired?

Question

Nolan Bentley

Physics

14 September, 11:24

0.05 kg bullet is fired to the north from a 4.0 kg rifle that is initially at rest. The

bullet leaves the rifle with a momentum of 20 Ns. Determine the total momentum of the bullet-and-rifle before the bullet is fired?

+3

Answers (1)

Know the Answer?

Leonard Wolfe · Answer 1

20 Ns

Explanation:

Using momentum conservation principle.

Total momentum before = total momentum after

MaVa + MbVb = M1V1 + MbVb

0 = M1V1 + M2V2

0 = 20 + M2V2

M2V2 = 20Ns

Total momentum = 20Ns

0.05 kg bullet is fired to the north from a 4.0 kg rifle that is initially at rest. Thebullet leaves the rifle with a momentum of 20 Ns. Determine the total momentum of the bullet-and-rifle before the bullet is fired?

0.05 kg bullet is fired to the north from a 4.0 kg rifle that is initially at rest. The

bullet leaves the rifle with a momentum of 20 Ns. Determine the total momentum of the bullet-and-rifle before the bullet is fired?