HARD
KVPY Aptitude Test - Stream SA
IMPORTANT
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A uniform disc of mass M and radius R is rotating about its centre of mass (the centre of mass is at rest) with an angular speed ω. The angular momentum of disc about a point A (as shown) will be

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Important Questions on Rigid Body Dynamics

MEDIUM
KVPY Aptitude Test - Stream SA
IMPORTANT

A uniform disc of mass m and radius R is undergoing fixed axis rotation about its own axis and centre O of disc remains stationary. The angular speed of disc is ω. Then the magnitude of angular momentum of disc about shown point Q is: (OP=x and PQ=R)

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HARD
KVPY Aptitude Test - Stream SA
IMPORTANT

A uniform circular disc placed on a horizontal rough surface has initially a velocity v0 and an angular velocity ω0 as shown in the figure. The disc comes to rest after moving some distance in the direction of motion. Then v0ω0 is

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MEDIUM
KVPY Aptitude Test - Stream SA
IMPORTANT

An impulsive force F acts horizontally on a solid sphere of radius R placed on a horizontal surface. The line of action of the impulsive force is at a height h above the centre of the sphere. If the rotational and translational kinetic energies of the sphere just after the impulse are equal, then h is equal to:

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EASY
KVPY Aptitude Test - Stream SA
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A solid sphere of mass m and radius r is gently placed on a conveyer belt moving with constant velocity V. If the coefficient of friction between the belt and sphere is 27, the distance travelled by the centre of the sphere before it starts pure rolling is-

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EASY
KVPY Aptitude Test - Stream SA
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A non-uniform sphere at rest on a rough horizontal surface is acted upon by a force F as shown. The friction force acting on it is

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(1) towards left
(2) towards right
(3) zero Then possible option is

MEDIUM
KVPY Aptitude Test - Stream SA
IMPORTANT

A horizontal force F is applied to the lower end of a uniform thin rod of mass 4 kg and length L=50 cm as shown in the figure. The rod undergoes only translational motion along the smooth horizontal surface. If F=60 N determine the angle θ for translation motion of the rod. g=10 m s-2

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MEDIUM
KVPY Aptitude Test - Stream SA
IMPORTANT
A solid cylinder and a solid sphere, both having the same mass and radius, are released from an incline of angle θ one by one. They roll on the incline without slipping. The statement that holds good in this motion is that
EASY
KVPY Aptitude Test - Stream SA
IMPORTANT

A uniform solid cylinder is given an angular speed ω and placed on a rough plate of negligible thickness. The horizontal surface below the plate is smooth. Then the angular speed of the cylinder when it starts pure rolling on the plate will be: [Assume sufficient length of plate]

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