Rotational motion is the movement of an object around an axis or center point. This type of motion occurs when an external force causes an object to rotate around a fixed point.
Translational motion is the movement of an object from one point to another in a straight line, while rotational motion involves the object rotating around a fixed point. In translational motion, all points on the object move the same distance, while in rotational motion, different points on the object move different distances.
Torque is the measure of a force's ability to cause an object to rotate around an axis. It is calculated by multiplying the force applied by the distance from the axis of rotation.
Angular velocity is the measure of how quickly an object rotates around an axis. It is directly proportional to the linear velocity of a point on the object and the distance of that point from the axis of rotation.
To solve problems involving rotational motion, you can use the equations of rotational motion, such as torque = moment of inertia x angular acceleration and angular velocity = angular acceleration x time. It is also important to understand the concept of conservation of angular momentum and apply it to relevant problems.