A man is sitting on a rotating stool wit...

A man is sitting on a rotating stool with his arms outstretched. If suddenly he folds his arms the angular velocity of the man would

increases

decreases

remains unchanged

doubles

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HC VERMA-ROTATIONAL MECHANICS-Objective 1

A body is rotating anonuniformly abut a vertical axis fixed in an iner...
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Let vecF be the force acitng on a paritcle having positon vector vecr...
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One end of a uniform rod of mas m and length l is clamped. The rod lie...
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A uniform rod is kept vertically on a horizontally smooth surface at ...
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A circular disc A of radius r is made from an iron plate of thickness ...
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Equal torques asct on the discs A and B of theh previous problem, init...
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A closed cylindrica tube containing some water (not filling the entire...
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The moment of inertias of a unifrom semicircular wire of mss M and rad...
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Let I1 and I2 be the moments of inertia of two bodies of identical ge...
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A body having its centre of mass at the origin has three of its partic...
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A cubical block of mass M and edge a slides down a rougg inclined plan...
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A thin circular ring of mass M and radius r is rotating about its ais ...
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A man is sitting on a rotating stool with his arms outstretched. If su...
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The centre of a wheel rolling on a plaen surface moves with a speed v0...
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A wheel of radius 20 cm is pushed ot move it on a rough horizontal sur...
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The angular velocity of the engine (and hence of the wheel) on a scoot...
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A solid sphere a hollow sphere and a disc all having same mass and rad...
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A solid sphere, a ring and a disc all having same mass and radius are ...
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In the previous question the smallest kinetic energy at the bottom of ...
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A string of negligible thicknes is wrapped several times around a cyli...
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