EASY
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IMPORTANT
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A wheel of radius rolls on the ground with a uniform velocity The velocity of topmost point relative to the bottommost point is
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Important Questions on Rotation
EASY
JEE Main
IMPORTANT
A sphere can roll on a surface inclined at an angle if the friction coefficient Now, suppose the friction coefficient is and the sphere is released from rest on the incline
EASY
JEE Main
IMPORTANT
A spherical ball rolls on a table without slipping. The fraction of its rotational energy associated with its total energy is
MEDIUM
JEE Main
IMPORTANT
The least coefficient of friction for an inclined plane inclined at an angle with horizontal, in order that a solid cylinder will roll down without slipping is
HARD
JEE Main
IMPORTANT
A sphere is rolling down a plane of inclination to the horizontal. The acceleration of its centre down the plane is
HARD
JEE Main
IMPORTANT
A particle is moving in a circular orbit with constant speed. Select the wrong alternate.
MEDIUM
JEE Main
IMPORTANT
A body is under the action of two equal and oppositely directed forces and the body is rotating with constan non-zero angular acceleration. Which of the following cannot be the separation between the lines of action of the forces?
EASY
JEE Main
IMPORTANT
A particle performs uniform circular motion with an angular momentum If the frequency of the particle motion is doubled keeping the radius constant, the angular momentum becomes
MEDIUM
JEE Main
IMPORTANT
A disc of mass rotates freely about a fixed horizontal axis through its centre. A thin cotton pad is fixed to its rim, which can absorb water?
The mass of water dripping onto the pad is per second. After what time will the angular velocity of the disc get reduced to half of its initial value?
