Does the center of mass always travel with the constant velocity and angular momentum?
Answer Hello Mukul Chakravarty, The center of mass of an object travels with constant velocity as long as no external forces act on it. This is Newton’s first law of motion. A change of velocity would mean an acceleration and Newton’s second law of motion states that a mass is accelerated by an external force, or that an external force on a mass causes an acceleration. As a consequence of these laws of motion for rotations, an object’s angular momentum stays constant, unless there is an external torque acting on it. A torque is defined as the degree of change of angular momentum. I hope I could help you a bit.
