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06-09-2020
Physics

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A 2-kg ball rolls down the hill. By the time it is at the bottom, the ball’s Kinetic Energy is 25 J. What is its velocity at the bottom of the hill?

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MathPhys MathPhys

06-09-2020

Explanation:

KE = ½ mv²

25 J = ½ (2 kg) v²

v = 5 m/s

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