Bullets from two revolvers are fired with the same velocity.The bullet from gun #1 is twice as heavy as the bullet from gun #2.Gun #1 weighs three times as much as gun #2.The ratio of the momentum imparted to gun #1 to that imparted to gun #2 is:
A)2:3
B)3:2
C)2:1
D)3:1
E)6:1

Question

Quizplus · Accepted Answer

The momentum imparted to each gun is equal in magnitude to the momentum of the bullet it fires. Since the bullet from gun #1 is twice as heavy as the bullet from gun #2, and both bullets are fired with the same velocity, the momentum of the bullet from gun #1 is twice that of gun #2. Therefore, the ratio of the momentum imparted to gun #1 to that imparted to gun #2 is 2:1.

Bullets from Two Revolvers Are Fired with the Same Velocity