A tennis ball is traveling North towards a tennis racket with kinetic energy equal to 5 J. After...

Question:

A tennis ball is traveling North towards a tennis racket with kinetic energy equal to 5 J. After contact with the racket, the tennis ball travels South, again with kinetic energy equal to 5 J. During this process, the change in kinetic energy is

a) 10 J

b) 0 J

c) 5 J

d) There is not enough information to answer this question.

Kinetic energy:

The energy due to the virtue of the motion is known as the Kinetic energy. It is directly proportional to the square of the velocity. Therefore energy is independent of the direction of the velocity.

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Kinetic Energy: Examples & Definition

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Chapter 4 / Lesson 14
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