Rotational motion, or movement in a circle about an axis, is as vital to everyday movement in the world as is linear motion. Angular quantities are almost all analogs of linear quantities, including momentum, velocity and acceleration. Radians are the typical units of angular velocity.

In statics, the net torque is zero, and there is no angular acceleration. In rotational motion, net torque is the cause of angular acceleration, exactly as in Newton’s second law of motion for rotation.

Rotational motion refers to the motion of an object as it rotates around a fixed axis. The study of rotational motion includes the analysis of rotational kinematics, rotational dynamics, and rotational energy.

Is rotational motion tough chapter? Rotation Motion is undoubtedly one of the most important and difficult chapters in Physics.

The work-energy theorem for rotation states that the amount of work done by all the torques acting on a rigid body about a fixed axis of rotation is equal to the change in the rotational kinetic energy of the object.