Multiple Choice
A playground merry-go-round with a radius of 1.8 m and a rotational inertia of 120 kg m2 is stationary. A child with a mass of 25 kg gets on and walks around the edge of the merry-go-round. How many revolutions around the merry-go-round must the child make in order for the merry-go-round to make one full revolution?
A) 2.5 revolutions
B) 1.5 revolutions
C) 3.0 revolutions
D) 1.0 revolutions
E) 2.0 revolutions
Correct Answer:

Verified
Correct Answer:
Verified
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