Questions
A disc is free to rotate about a smooth horizontal axis passing through its centre of mass. A particle is fixed
at the top of the disc. A slight push is given to the disc and it starts rotating. During the process,
detailed solution
Correct option is A
Angular momentum will not remain conserved due to the torque produced by weight of particle acting about axis of rotation. Hence, only mechanical energy is conserved.Talk to our academic expert!
Similar Questions
A disc can rotate about an axis passing through its centre and perpendicular to the plane of the disc. Initially the disc is stationary and its moment of inertia about the axis is 4 Kg-m2. A torque is applied on the disc which varies with time according to the graph shown in figure. Then angular velocity of the disc at the end of 6th second is
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