Chapter 6, Problem 2CQ

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Chapter
Section

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

# If two objects collide and one is initially at rest, (a) is it possible for both to be at rest after the collision? (b) Is it possible for only one to be at rest after the collision? Explain.

(a)

To determine
The state of the objects after the collision.

Explanation

Given Information: Before collision one of the object was in motion and the other object was at rest.

Explanation:

When no net external force acts on a system, the total momentum of the system remains constant in time.

When two bodies collide with one another, their total momentum remains constant, provided no external forces are action. Thus, whenever one body gains momentum, some other body must lose an equal amount of momentum. Hence, total momentum after collision is equal to total momentum after collision...

(b)

To determine
The state of the objects after the collision.

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