Momentum of a Defined System
A 2 kg ball moving at 5 m/s collides with and sticks to a 3 kg ball that is initially at rest. Consider a system that consists of only the 2 kg ball before the collision and both balls after the collision. Which of the following statements describes the momentum of this system?
A
It increases from 10 kg·m/s to 25 kg·m/s
B
It changes from 10 kg·m/s to 10 kg·m/s in a new direction
C
It remains constant at 10 kg·m/s
D
It changes due to the 3 kg ball entering the system
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