If an object remains at rest, then the sum of both the external torques and the external forces on the
object must be zero.

Question

Quizplus · Accepted Answer

For an object to remain at rest, both the net external force and the net external torque acting on it must be zero, according to Newton's first law of motion and the rotational equivalent of Newton's first law. This ensures there is no linear or rotational acceleration.

If an Object Remains at Rest, Then the Sum of Both