A ladder at rest is leaning against a wall at an angleas shown below.   Which of the following forces must have the same magnitude as the frictional force exerted on the ladder by the floor?  a The force of gravity on the ladder  b The normal force exerted on the ladder by the wall  c The normal force exerted on the ladder by the floor  d The frictional force exerted on the ladder by the wall

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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.