## Fundamentals of Physics Extended (10th Edition)

Published by Wiley

# Chapter 7 - Kinetic Energy and Work - Questions: 3b

#### Answer

Negative work is being done.

#### Work Step by Step

The particle is initially traveling in the positive direction. Any force acting on the particle at an angle below 90$^{\circ}$ will pull the particle in the positive direction. A force acting above 90$^{\circ}$ will pull the particle in the negative direction, there force creating negative work.

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