## Fundamentals of Physics Extended (10th Edition)

Published by Wiley

# Chapter 7 - Kinetic Energy and Work - Questions: 2b

#### Answer

Situation (b) corresponds with plot 3.

#### Work Step by Step

Situation (b) has the force, opposite of the blocks motion, as the stronger force. This means that the block will eventually be slowed down to a velocity of zero, and the speed back up again in the opposite direction. The kinetic energy starts out decreasing, reaches zero, and then increases again.

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