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A solid sphere and a hollow sphere of eq...

A solid sphere and a hollow sphere of equal mass and radius are placed over a rough horizontal surface after rotating it about its mass centre with same angular velocity `omega_(0)`. Once the pure rolling starts let `v_(1)` and `v_(2)` be the linear speeds of their centres of mass. Then

A

`v_(1)=v_(2)`

B

`v_(1)gtv_(2)`

C

`v_(1)ltv_(2)`

D

data is insufficient

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The correct Answer is:
C
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Knowledge Check

  • A solid sphere and hollow sphere of the same mass and radius are given a spin about their centre of mass then, they are placed on a rough horizontal surface. The spin angular velocity is the same for both the spheres and it is equal to omega_(0) . Once the pure rolling starts, let v_(1) and v_(2) be the liner speeds of their centres of mass, then

    A
    `v_(1)=v_(2)`
    B
    `v_(1) gt v_(2)`
    C
    `v_(1) olt v_(2)`
    D
    Data is insufficient

  • A point mass m collides with a disc of mass m and radius R resting on a rough horizontal surface as shown . Its collision is perfectly elastic. Find angular velocity of the disc after pure rolling starts

    A
    `((2u)/(3R))`
    B
    `((3u)/(3R))`
    C
    `((5u)/(3R))`
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    `((2u)/(5R))`

  • A solid sphere of mass ma nd radis R is placed on a rough horizontal surface A horizontal force F is applied to sphere at a height h, (0lehleR) from centre. If sphere rolls slipping then,

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