$A$ uniform rod is fixed to a rotating turntable so that its lower end is on the axis of the turntable and it makes an angle of $20^o$ to the vertical. (The rod is thus rotating with uniform angular velocity about a vertical axis passing through one end.) If the turntable is rotating clockwise as seen from above,is there a torque acting on it,and if so,in what direction?

  • A
    Yes,vertically
  • B
    Yes,horizontally
  • C
    Yes,at $20^o$ to the horizontal
  • D
    No

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