homogeneous sphere weighing 50 lb rests against two smooth planes that form a V-shaped trough as shown in. Determine the forces exerted on the sphere by the planes at contact points A and B.

Q: a G 6 mm b

A: Radius R=6mmlocation of  center of gravity G(x,y)=(0,0)

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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.