In a perfectly ELASTIC collision between two perfectly rigid objects... the momentum of each object is conserved. the momentum of the system is conserved but the kinetic energy of the system is not conserved. both the momentum and the kinetic energy of the system are conserved. O the kinetic energy of each object is conserved. the kinetic energy of the system is conserved, but the momentum of the system is not conserved.

In a perfectly ELASTIC collision between two perfectly rigid objects... the momentum of each object is conserved. the momentum of the system is conserved but the kinetic energy of the system is not conserved. both the momentum and the kinetic energy of the system are conserved. O the kinetic energy of each object is conserved. the kinetic energy of the system is conserved, but the momentum of the system is not conserved.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

### Understanding Elastic Collisions

In a perfectly elastic collision between two perfectly rigid objects, certain physical principles regarding momentum and kinetic energy apply. When describing such collisions, it's important to identify which properties are conserved. Here are some possible statements:

- **Momentum Conservation:**
- O the momentum of each object is conserved.
- O the momentum of the system is conserved but the kinetic energy of the system is not conserved.

- **Kinetic Energy Conservation:**
- O the kinetic energy of each object is conserved.
- O the kinetic energy of the system is conserved, but the momentum of the system is not conserved.

- **Both Momentum and Kinetic Energy Conservation:**
- O both the momentum and the kinetic energy of the system are conserved.

#### Explanation:

In a perfectly elastic collision:
- **Both the momentum and the kinetic energy of the system are conserved.**

This means that the total momentum and total kinetic energy before and after the collision remain constant. However, the distribution of these quantities among the objects may change.

Understanding these principles is crucial in physics for analyzing collision scenarios and predicting the outcomes based on the laws of conservation.

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