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A 2kg ball is pushed across a floor at a velocity of 10 m/s. What is the kinetic energy of the ball?
J

Correct!

KE = 1 over 2 1 2 mv2

KE = 1 over 2 1 2 (2 kg)(10 m/s)2

KE = 1 over 2 1 2 (2 kg)(100 m/s) = 100 J

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