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AP EAMCET202022 Sep 2020Evening ShiftPhysicsRotational MotionActual

When the torque acting upon a system is zero, the parameter that remains constant is

Options

  1. Aforce
  2. Blinear momentum
  3. Cangular momentum
  4. Dlinear impulse

Correct answer

C. angular momentum

Step-by-step solution

Torque acting upon a rotating body is given as = d L d t where, L= angular momentum. When =0 , then aligned & d L d t =0 & L = constant aligned L = constant Hence, when the torque acting upon a system is zero, then its angular momentum remains constant.

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