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If a rigid body rolls on a surface witho...

If a rigid body rolls on a surface without slipping, then:

A

linear speed is maximum at the highest point but minimum at the point of contact

B

linear speed is minimum at highest point but maximum at the point of contact

C

linear speed is same at all points of the rigid body

D

angular speed is different at different points of a rigid body

Text Solution

Verified by Experts

The correct Answer is:
A
In case of rolling without slipping all points of a rigid body have same angular speed but differnent linear speepd. The linear speed is maximum `(=2v)` at the highest point `H`, while minimum for the lowest point `(=zero)L`. This all clearly follows from the given figure.
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Knowledge Check

  • If a body is rolling on a surface without slipping such that its kinetic energy of translation is equal to kinetic energy of rotation then it is a

    A
    ring
    B
    disc
    C
    spherical shell
    D
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    A
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    B
    Statement-1 is True, Statement-2 is True , Statement-2 is NOT a correct explanation fro Statement -1.
    C
    Statement-1 is True, Statement-2 is False.
    D
    Statement-1 is False, Statement-2 is True.

  • For a body rolling along a level surface, without slipping the translational and rotational kinetic energies are in the ratio 2:1 . The body is

    A
    Hollow sphere
    B
    solid cylinder
    C
    ring
    D
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