## Physics: Principles with Applications (7th Edition)

Published by Pearson

# Chapter 6 - Work and Energy - Search and Learn: 3

#### Answer

a. Elastic force of a spring and gravity. b. Nonconservative.

#### Work Step by Step

a. The two conservative forces discussed are the force of gravity, and the elastic force of a spring. They are accounted for by gravitational potential energy and elastic potential energy, respectively. b. The force of water on a swimmer is nonconservative. It’s a frictional force that dissipates mechanical energy.

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