Question

Dynamics of Rotational Motion: Rotational Inertia

Answer 1

An object at rest tends to remain at rest and an object in rotation tends to continue rotating with constant angular velocity unless compelled by a net external torque to act otherwise. For every action there is an equal and opposite reaction. (Here action and reaction refer to forces

Answer 2

Answer:

Dynamics for rotational motion is completely analogous to linear or translational dynamics. Dynamics is concerned with force and mass and their effects on motion. For rotational motion, we will find direct analogs to force and mass that behave just as we would expect from our earlier experiences.