Multiple Choice
A hoop (I = MR2) of mass 2.0 kg and radius 0.50 m is rolling at a center-of-mass speed of 15 m/s.An external force does 750 J of work on the hoop.What is the new speed of the center of mass of the hoop?
A) 19 m/s
B) 22 m/s
C) 24 m/s
D) 27 m/s
E) 68 m/s
Correct Answer:
Verified
Correct Answer:
Verified
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