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+1 vote
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in Physics by (30.0k points)

A horse of mass 210 kg and a dog of mass 25 kg are running at the same speed. Which of the two possesses more kinetic energy? How? 

1 Answer

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Kinetic energy, K.E. = 1/ 2 mv2 

If the velocity is constant, Kinetic energy is directly proportional to mass. So as mass increases, kinetic energy also increases. Here, mass of horse is greater than that of dog, so kinetic energy of the horse is greater than dog when speed is constant.

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