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Point masses m1 and m2 are placed at th...

Point masses` m_1` and `m_2` are placed at the opposite ends of a rigid rod of length L, and negligible mass . The position of point p on this rod through which the axis should p on this rod through which the axis should pass so that the work required to set the rod rotating with angular velocity `omega_0` is minimum , is given by:
.

A

`x=m_2L/(m_1+m_2)`

B

`x=m_1L/(m_1+m_2)`

C

`x=(m_1)/(m_2)L

D

`x=(m_2)/(m_1)L`

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Knowledge Check

  • Moment of inertia of a thin uniform rod about an axis passing through the center of mass and perpendicular to the length is

    A
    `(1)/(3)Ml^(2)`
    B
    `(1)/(12)ml^(2)`
    C
    `(1)/(2)M(l^(2)+b^(2))`
    D
    `Ml^(2)`

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