A cord is wound round the circumference of a wheel
of radius r. The axis of the wheel is horizontal
and moment of inertia about it is I. A weight mg
is attached to the end of the cord and falls from
rest. After falling through a distance h, the angular
velocity of the wheel will be:
2gh
2gh
(B)
I + mr2
2mgh
(C)
(D) (2gh)"?
1/2
1/2
(A)
G
I + mr
1/2
I+2m
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