Rotational MotionMedium
Question
A ring of radius r and mass m rotates about an axis passing through its centre and perpendicular to its plane with angular velocity ω. Its kinetic energy is:-
Options
A.mrω2
B.mrω2/2
C.mr2ω2
D.
More Rotational Motion Questions
A fly wheel is so constructed that almost whole of its mass is concentrated at its rim, because:-...A small mass attached to a string rotates on a frictionless table top as shown. If thetenstion in the string is increase...A solid cylinder has mass M, length L and radius R. The moment of inertia of this cylinder about generator axis will be ...A rigid body rotates about a fixed axis with variable angular velocity equal to α - βt at time t, where α...Point masses 1, 2, 3 and 4 kg are lying at the point (0, 0, 0), (2, 0, 0), (0, 3, 0) and (- 2,- 2, 0) respectively. The ...