MCQ
The angular momentum of a moving body remains constant if
  • A
    net external force is applied
  • B
    net pressure is applied
  • C
    net external torque is applied
  • net extenal torque is not applied

Answer

Correct option: D.
net extenal torque is not applied
d
We know that when the net external torque acting on a system is zero, the total angular momentum of the system remains constant. Therefore the angular momentum of a moving body remains constant if net external torque is not applied

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