https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:momentum-and-conservation-of-momentum/x0e04e0cb682fb793:conservation-of-momentum/v/conservation_of_momentum 2024-07-01T11:54:52.194339821Z Conservation of momentum According to Newton's third law, two interacting objects exert equal and opposite forces on each other. And, according to one form of Newton's second law, the net force on an object is equal to the rate of change of the object's momentum. As a consequence of these two laws, the total momentum of a system of interacting objects is conserved if there is no unbalanced force from outside the system. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/786a8547-b4f4-4547-bd8d-1b28501b6600_1280_720_base.png Conservation of momentum According to Newton's third law, two interacting objects exert equal and opposite forces on each other. And, according to one form of Newton's second law, the net force on an object is equal to the rate of change of the object's momentum. As a consequence of these two laws, the total momentum of a system of interacting objects is conserved if there is no unbalanced force from outside the system. https://cdn.kastatic.org/ka-youtube-converted/PJMFxBIqkSs.mp4/PJMFxBIqkSs.mp4 749 Conservation of momentum https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:momentum-and-conservation-of-momentum/x0e04e0cb682fb793:conservation-of-momentum/e/understand-conservation-momentum 2026-05-22T02:50:56.444203687Z Understand: Conservation of momentum Check your understanding of conservation of momentum in this set of free practice questions. Emily Cizmas exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:momentum-and-conservation-of-momentum/x0e04e0cb682fb793:conservation-of-momentum/v/momentum-conservation-solved-example 2024-05-06T20:53:58.873997715Z Conservation of momentum calculations Conservation of momentum can be used to predict the motion of objects after a collision. Let's try two practice problems together. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/5vsn4PWnouUBb_EF-DjnUtqBkSpqoBgPFaqF_bOoXAeKiOjIXv4qHRn_SQuj0uZDsGWlKxILsAMwQQiPk62cd0o Conservation of momentum calculations Conservation of momentum can be used to predict the motion of objects after a collision. Let's try two practice problems together. https://cdn.kastatic.org/ka-youtube-converted/VwnSR8X8LrA.mp4/VwnSR8X8LrA.mp4 663 Conservation of momentum https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:momentum-and-conservation-of-momentum/x0e04e0cb682fb793:conservation-of-momentum/e/conservation-of-momentum-ap-physics-1 2026-02-06T04:22:50.396963225Z Conservation of momentum calculations Apply your knowledge of conservation of momentum in this set of free practice questions. Sean Boston exercise