Rotational Motion Question 209
Question: A child with mass m is standing at the edge of a playground merry-go-round (A large uniform disc which rotates in horizontal plane about a fixed vertical axis in parks) with moment of inertia Vs I, radius R, and initial angular velocity w. The child jumps off the edge of the merry-go-round with a velocity v with respect to the ground in direction tangent to periphery of the disc as shown. The new angular veloity of the merry-go-round is :
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Let the angular velocity of disc after child jumps off.
be
