Rotational MotionMedium
Question
A uniform rod of mass M and length L lies radially on a disc rotating with angular speed ω in a horizontal plane about its axis. The rod does not slip on the disc and the centre of the rod is at a distance R from the centre of the disc. Then the kinetic energy of the rod is -
Options
A.
B.
mω2R2
mω2R2C.
mω2L2
mω2L2D.None of these
Solution
As rod does not slip on the disc, so the kinetic energy of the rod is
=
I - MI of rod about axis passing through centre of disc & perpendicular to the plane.
=
I - MI of rod about axis passing through centre of disc & perpendicular to the plane.
Create a free account to view solution
View Solution FreeMore Rotational Motion Questions
A body of mass m is moving with constant velocity parallel to x-axis. The angular momentum with respect to origin :-...A thin ring of mass M and radius r is rotating about its axis with constant angular velocity ω. Two objects each of...Off two eggs which have identical sizes, shapes and weights, one is raw and the other is half-boiled. The ratio between ...A solid cylinder of mass M and radius R rolls without slipping down on an inclined plane of length L and height h. What ...Three solid spheres of mass M and radius R are shown in the figure. The moment of inertia of the system about XX′ ...