Question: By approximately what percent does the kinetic energy decrease? A. (35 %) B. (45 %) C. (55 %) D. (65 %) A tennis ball bouncing

By approximately what percent does the kinetic energy decrease?

A. \(35 \%\)

B. \(45 \%\)

C. \(55 \%\)

D. \(65 \%\)

A tennis ball bouncing on a hard surface compresses and then rebounds. The details of the rebound are specified in tennis regulations. Tennis balls, to be acceptable for tournament play, must have a mass of \(57.5 \mathrm{~g}\). When dropped from a height of \(2.5 \mathrm{~m}\) onto a concrete surface, a ball must rebound to a height of \(1.4 \mathrm{~m}\). During impact, the ball compresses by approximately \(6 \mathrm{~mm}\).

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