Question

What is Rotational Equilbrium ?


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Answer 1

Answer:

rotational equilibrium is defined as a state of system

Answer 2

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$\huge\mathcal{\underline{\color{aqua}QUESTION}}$

✨ What is Rotational Equilbrium ?

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☕ The centre of mass of a body remains in equilibrium if the total external force acting on the body is zero. This follows from the equation F = Ma.

☕ Similarly, a body remains in rotational equilibrium if the total external torque acting on the body is zero. This follows from the equation τ = Iα. Therefore a body in rotational equilibrium must either be in rest or rotation with constant angular velocity.

☕ Thus, if a body remains at rest in an inertial frame, the total external force acting on the body should be zero in any direction and the total external torque should be zero about any line.

• Under the action of several coplanar forces, the net torque is zero for rotational equilibrium.

[Note: If the net force on the body is zero, then the net torque may or may not be zero.]