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A and B are two identical rings released...

A and B are two identical rings released from the top of an inclined plane . A slides down and B rolls down. Then which reaches the bottom first ?

A

A

B

B

C

both in same time

D

none of these

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Two spheres of unequal masses but of the same radii are released from the top of a smooth inclined plane. They roll down the plane without slipping. Which one will reach the bottom first?

    A
    Both will reach the bottom at the same time
    B
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    C
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    D
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  • A small disc is released from rest at A on an inclined plane AB so that it rolls down wihtout slipping. It reaches the bottom with linear velocity v_(1) in time t_(1) . Next a small ring released form rest on the inclined plane AC so that it rolls down without slipping. It reaches the bottom with linear vlocity v_(2) in time t_(2) . Given theta_(1)=30^(@), theta_(2)=60^(@), and h=10m. Then,

    A
    `v_(1)gtv_(2),t_(1)ltt_(2)`
    B
    `v_(1)ltv_(2),t_(1)gtt_(2)`
    C
    `v_(1)gtv_(2),t_(1)gtt_(2)`
    D
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  • Solid sphere, hollow sphere, solid cylinder and hollow cylinder of same mass and same radii are simultaneously start rolling down from the top of an inclined plane. The body that takes longest time to reach the bottom is

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    B
    hollow sphere
    C
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    D
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