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A loop of a string of mass length mu and...

A loop of a string of mass length `mu` and redius R is rotated about an axis passing through centre perpendicular to the plane with an angular velocity `omega`.A small disturbance is created in the loop having the same sense of rotation. The linear speed of the disturbance observer is

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Knowledge Check

  • A uniform rod of mass m. length L, area of cross- secticn A is rotated about an axis passing through one of its ends and perpendicular to its length with constant angular velocity \(omega\) in a horizontal plane If Y is the Young's modulus of the material of rod, the increase in its length due to rotation of rod is

    A
    `(momega^(2)L^(2))/(AY)`
    B
    `(momega^(2)L^(2))/(2AY)`
    C
    `(momega^(2)L^(2))/(3AY)`
    D
    `(2momega^(2)L^(2))/(AY)`

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