A Solid Uniform Ball with a Mass of 125 G

question 4

Multiple Choice

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.

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