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A solid sphere, a hollow sphere and a di...

A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of a smooth incline and released. Least time will be taken in reaching the bottom by

A

the solid sphere

B

the hollow sphere

C

the disc

D

all will take same time

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-EXERCISE - 1A
  1. A solid sphere, a hollow sphere and a disc, all having same mass and r...

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  2. A disk and a sphere of same radius but different masses roll on two in...

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  3. A solid sphere, a hollow sphere and a disc, all having same mass and r...

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  4. The ratio of the accelerations for a solid sphere (mass 'm' and radius...

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  5. Let I(A) and I(B) be moments of inertia of a body about two axes A and...

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  6. A sphere is rotating about a diameter

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  7. Two uniform solid spheres having unequal masses and unequal radii are ...

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  8. A sphere cannot roll on

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  9. A hollow sphere and a solid sphere having same mass and same radii are...

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  10. A sphere is rolled on a rough horizontal surface. It gradually slows d...

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  11. A sphere can roll on a surface inclined at an angle theta if the frict...

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  12. A body moves along an uneven horizontal road surface with constant spe...

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  13. In gravity- free space, a particle is in contact with the inner surfac...

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  14. For a system to be in equilibrium the torques acting on it must balanc...

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  15. A rectangular block has a square base measuring a xx a, and its height...

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  16. A man spinning in free space change the moment of inertia of his body ...

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  17. An external device, e.g., an electric motor, supplies constant power t...

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  18. Three identical solid spheres moves down three incline A, B and C - al...

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  19. A small ball strikes a stationary unbiform rod, which is free to rotat...

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  20. The earth rotats from west to east. A wind mass begains moving due nor...

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