What is translational motion and rotational motion?
Translational Motion is a type of motion in which the body and every constituent particle move along a straight line with identical velocity in a particular direction (x, y or z). It is also known as linear motion.
Rotational Motion is a type of motion in which a body and every constituent particle spins about an axis (rotational axis) such that they trace concentric circles about the axis. The angular speeds of particles would differ in this case.