Questions
A cord is wound round the circumference of wheel of radius r. The axis of the wheel is horizontal and fixed and moment of inertia about it is I. A weight mg is attached to the free end of the cord and falls from rest. After falling through a distance h, the angular velocity of the wheel will be
detailed solution
Correct option is B
mgh = 12mv2+12Iω2, v = ωrω = 2mghI+ mr2Talk to our academic expert!
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In the arrangement shown, the end B of the rod of length ‘l’ is made to move with constant velocity V. Then velocity of its centre of mass when is
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