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A uniform metal rod is suspended from on...

A uniform metal rod is suspended from one end. When it is displaced through `60^(@)` from the vertical, the change in potential energy is .U., the change in potential energy when it is displaced further through `60^(@)` is

A

U

B

U/2

C

2U

D

3U

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • A uniform metre scale of mass 2kg is suspended from one end. If it is displaced through an angle 60^(@) from the vertical, the increase in its potential energy is,

    A
    4.9J
    B
    9.8J
    C
    `9.8 sqrt3J`
    D
    `4.9 (2- sqrt3)J`

  • A uniform metre scale of mass 2kg is suspended from one end. If it is displaced through an angle 60^(@) from the vertical, the increase in its potential energy is

    A
    4.9 J
    B
    9.8 J
    C
    `9.8sqrt(3)J`
    D
    `4.9(2-sqrt(3))J`

  • A uniform metre scale of mass 2kg is suspended from one end. If it is displaced through an angle 60^(@) from the vetical, th increase in its potential energy is,

    A
    4.9 J
    B
    9.8 J
    C
    `9.8sqrt(3)J`
    D
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