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Rotational equilibrium is a state where an object is not rotating or changing its angular velocity. This means that the net torque acting on the object is equal to zero.
Torque is a measure of the force that causes an object to rotate around an axis. It is calculated by multiplying the force applied to an object by the distance from the axis of rotation to the point where the force is applied.
Rotational equilibrium refers to the balance of forces that cause an object to rotate, while translational equilibrium refers to the balance of forces that cause an object to move in a straight line at a constant velocity.
The center of mass is the point where an object's mass is evenly distributed. In rotational equilibrium, the center of mass is the point where the net force and net torque act, allowing for a stable and balanced rotational motion.
Angular momentum is a measure of an object's tendency to continue rotating. In rotational equilibrium, the angular momentum of an object does not change since there is no net torque acting on the object.