Posted by Google (99..201.63) on October 25, 2022 at 07:14:24:
In Reply to: Bạn tt đă dự báo đúng sáng nay posted by cai vườn on October 25, 2022 at 07:12:30:
Newton's second law of motion states that the rate of change of a body's momentum is equal to the net force acting on it. Momentum depends on the frame of reference, but in any inertial frame it is a conserved quantity, meaning that if a closed system is not affected by external forces, its total linear momentum does not change.