Mastering Physics Solutions: Question 6.10

Mastering Physics Solutions: Question 6.10

On January 5, 2012, in Chapter 06: Linear Momentum and Collisions, by Mastering Physics Solutions

A Multiple Choice Question 6.10

Part A = they cancel each other.

Solutions Below:

Part A

Internal forces do not affect the conservation of momentum because

A. they cancel each other.
B. they can never produce a change in velocity.
C. Newton’s second law is not applicable to them.
D. their effects are canceled by external forces.

Choice D doesn’t make sense for an object at rest (no external force acting on it). C is wrong, and B is too vague. So the correct answer is:

A. they cancel each other.

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