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Class XI Physics System of Particles & Rotational Motion 4

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Question 1

Three rings, each of mass P and radius Q are arranged as shown in the figure. The moment of inertia of the arrangement about YY' axis will be-

Question 2

A circular disc A of radius r is made from an iron plate of thickness t and another circular disc B of radius 4r is made from an iron plate of thickness 4t. The relation between the moments of inertia I_A and I_B is-

Question 3

A balloon of mass M with a light rope and monkey of mass m are at rest in mid air. If the monkey climbs up the rope and reaches the top of the rope, the distance by which the balloon descends will be-
(The length of the rope = L)

Question 4

Two solid balls of rubber A and B whose masses are 200gm and 400gm respectively are moving in mutually opposite directions. If the velocity A is 0.3 m/s and both the balls come to rest after the collision, then the velocity of ball B is-

Question 5

A body of mass m kg collides elastically with another body at rest and then continues to move in the original direction with one half of its original speed. what is the mass of the target body?

Question 6

Two spherical bodies of masses m and 5m and radii R and 2R respectively are released in free space with initial separation between their centers equal to 12R. If they attract each other due to gravitational force only then the distance covered by smaller sphere just before collisions will be –

Question 7

A uniform metallic spherical shell is suspended by threads. It has two holes A and B at top and bottom respectively, as shown in figure. Then-

Question 8

Two identical blocks having mass M each are smoothly conjugated and placed on a smooth horizontal floor as shown in the figure. On the left of block A, there is a wall. A small block of mass m is released from the position shown in the figure. The velocity of block B is maximum,

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Oct 20JEE & BITSAT