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A wheel is rotating about its axis at a constant angular velocity. If suddenly an object sticks to it on the rim, then its M.I. will

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Important Questions on Rotational Mechanics

HARD
NEET
IMPORTANT
A wheel is rotating about its axis at a constant angular velocity. If suddenly an object sticks to it on the rim, then the angular velocity will 
MEDIUM
NEET
IMPORTANT
An ant is sitting at the edge of a rotating disk. If the ant reaches the other end after moving along the diameter, the angular velocity of the disk will,
MEDIUM
NEET
IMPORTANT
The angular momentum of the body remains to conserve if
HARD
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IMPORTANT
A person is standing on the edge of a circular platform, which is moving with constant angular speed about an axis passing through its centre and perpendicular to the plane of the platform. If a person is moving along any radius towards the axis of rotation then the angular velocity will
EASY
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IMPORTANT
A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity ω. Four objects each of mass m, are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be
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IMPORTANT
A round disc of moment of inertia I2 about its axis perpendicular to its plane and passing through its center is placed over another disc of moment of inertia I1 rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of discs is 
HARD
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Rate of change of angular momentum with respect to time is proportional to :-
HARD
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IMPORTANT
A small steel sphere of mass m is tied to a string of length r and is whirled in a horizontal circle with a uniform angular velocity 2ω. The string is suddenly pulled, so that radius of the circle is halved. The new angular velocity will be