What is the angular speed of the child when he folds his hands back, reducing his moment of inertia to 2/5 times the initial value, while standing on a turntable rotating at 40 rev/min?

Question

What is the angular speed of the child when he folds his hands back, reducing his moment of inertia to 2/5 times the initial value, while standing on a turntable rotating at 40 rev/min?, 100 rev/min, 64 rev/min, 50 rev/min, 80 rev/min

MARKS App · Accepted Answer

Correct Option is : (A) 100 rev/min

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