The object with weight Fg = 20 N is hanging as in the figure. (Ignore the masses of the pulleys and rope) What is the weight Fg’ that keeps the system in equilibrium.

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Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics. 

Equilibrium of Forces

The tension created on one body during push or pull is known as force.