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A solid ring, sphere and a disc are roll...

A solid ring, sphere and a disc are rolling down from the top of the same height, then the sequence to reach on the surface is

A

ring, disc, sphere

B

sphere, disc, ring

C

disc, ring, sphere

D

sphere, ring, disc

Text Solution

Verified by Experts

For ring, `(k^(2))/(R^(2))=1`
Solid sphere `=(2)/(5)=0.4`
Disc, `(k^(2))/(R^(2))=0.5`
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Knowledge Check

  • A ring solid sphere and a disc are rolling down from the top of the same height, then the sequence to reach on surface is

    A
    Ring, disc, sphere
    B
    sphere, disc, ring
    C
    Disc, ring, sphere
    D
    Sphere, ring, disc

  • A solid sphere and a disc of same mass and radius starts rolling down a rough inclined plane, from the same height the ratio of the time taken in the two cases is

    A
    `15: 14`
    B
    `sqrt15: sqrt14`
    C
    `14: 15`
    D
    `sqrt14: sqrt15`

  • A solid sphere and a spherical shell roll down an incline from rest from same height. The ratio of times taken by them is

    A
    `sqrt(21/25)`
    B
    `21/25`
    C
    `sqrt(25/21)`
    D
    `25/21`

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