Adult cheetahs the fastest of the great cats have a mass of, Ask an Expert

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Adult cheetahs, the fastest of the great cats, have a mass of about 7 kg and have been clocked at up to 70 mph 31m/s.

A. How many joules of kinetic energy does such a swift cheetah have?

B. By what factor would its kinetic energy change if its speed were doubled?

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