What is the change in kinetic energy

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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, What is the change in kinetic energy?

Reference no: EM13977213

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What is the change in kinetic energy : After contact with the racket, the tennis ball travels South, again with kinetic energy equal to 5 J. During this process, What is the change in kinetic energy?

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