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Question
A solid uniform ball with a mass of 125 g is rolling without slipping along the horizontal surface of a table with a speed of 4.5 m/s when it rolls off the edge and falls towards the floor, 1.1 m below. What is the rotational kinetic energy of the ball just before it hits the floor?
A) 0.51 J B) 0.73 J C) 1.1 J D) 2.6 J E) This question cannot be answered without knowing the radius of the ball. Answer
15
Seconds
Thank yoou
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