zainabshahna03 zainabshahna03

21-04-2020
Chemistry

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2. A 0.5 kg tennis ball has speed of 15m/s. what is the kinetic energy of tennis?

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kritika3375 kritika3375

21-04-2020

Explanation:

Given

mass (m) = 0.5 kg

velocity (v) = 15 m/s

Now

Kinetic energy

= 1/2 *m*v²

= 1/2 * 0.5 * 12²

= 0.5 *0.5 * 144

= 36 joule

hope it will help

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