Are There Any Kinds of Situations in Which the Momentum

question 61

Multiple Choice

Are there any kinds of situations in which the momentum of a moving system is not conserved?

• A) No, because the momentum of any system is always conserved.
• B) Yes, if there is friction acting between different parts of the system.
• C) Yes, if some of the parts of the system collide with each other.
• D) Yes, if any part of the system is acted upon by forces external to the system.
• E) No, because the law of inertia demands that any moving system must keep moving.

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