Rigid Body

IMPORTANT

Rigid Body: Overview

This topic covers concepts, such as, Motion of a Rigid Body, Rigid Body & Motion of a Particle etc.

Important Questions on Rigid Body

MEDIUM
IMPORTANT

A uniform sphere of radius r rolls without slipping down the top of a sphere of radius R. The initial velocity of the sphere is negligible. The angular velocity of the fixed sphere at the moment when it breaks off from the other sphere is

EASY
IMPORTANT

A uniform thin rod of mass m  and length l  is held horizontally by two vertical strings attached to the two ends. One of the string is cut. Find the angular acceleration soon after it is cut:

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MEDIUM
IMPORTANT

A uniform sphere is placed on a smooth horizontal surface. A horizontal force F is applied to it at a height h above the centre. The acceleration of the centre of mass of the sphere will be

HARD
IMPORTANT

On a pulley of mass M hangs a rope with two masses m1 and m2m1>m2 tied at the ends as shown in the figure. The pulley rotates without any friction, whereas the friction between the rope and the pulley is large enough to prevent any slipping. Which of the following plots best represents the difference between the tensions in the rope on the two sides of the pulley as a function of the mass of the pulley?

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HARD
IMPORTANT

A solid cylinder P rolls without slipping from rest down an inclined plane attaining a speed vP at the bottom. Another smooth solid cylinder Q of same mass and dimensions slides without friction from rest down the inclined plane attaining a speed vQ at the bottom. The ratio of the speeds vQvP is -

MEDIUM
IMPORTANT

A solid sphere rolls without slipping, first horizontally and then up to a point x at height h on an inclined plane before rolling down, as shown in the figure below.

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The initial horizontal speed of the sphere is

MEDIUM
IMPORTANT

A rigid ball rolls without slipping on a surface shown below.

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Which on the following is the most likely representation of the distance travelled by the ball vs time graph?

EASY
IMPORTANT

A rod of length l slide down along the inclined wall as shown in figure. At the instant shown in figure, the speed of end A is v, then the speed of B will be

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EASY
IMPORTANT

A rigid body in shape of a triangle has vA=5 m/s , vB=10 m/s . Find velocity of point C.

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