https://www.khanacademy.org/science/in-in-class11th-physics/in-in-system-of-particles-and-rotational-motion/in-in-conservation-of-angular-momentum/v/conservation-of-angular-momentum 2022-09-11T00:33:55.311722934Z Conservation of angular momentum How angular momentum is conserved within a system when there is no external torque. video https://cdn.kastatic.org/googleusercontent/MzSpkObdsE9haMuJACx9QFqQyNXHx60QcVDwInd905iXS_2c1rcfrNQCx7VPwz7WxsjhDqRXElrWlyMaveXDJ7QmrQ Conservation of angular momentum How angular momentum is conserved within a system when there is no external torque. https://cdn.kastatic.org/ka-youtube-converted/vfmLI150g4w.mp4/vfmLI150g4w.mp4 437 Conservation of momentum and its applications https://www.khanacademy.org/science/ap-college-physics-1/xf557a762645cccc5:energy-and-momentum-of-rotating-systems/xf557a762645cccc5:conservation-of-angular-momentum/e/conservation-of-angular-momentum-2 2026-03-19T02:06:12.088286762Z Conservation of angular momentum Check your understanding of the conservation of angular momentum in this set of free practice questions. exercise https://www.khanacademy.org/science/in-in-class11th-physics/in-in-system-of-particles-and-rotational-motion/in-in-conservation-of-angular-momentum/v/constant-angular-momentum-when-no-net-torque 2021-02-07T17:14:01Z Constant angular momentum when no net torque Just like how linear momentum is constant when there's no net force, angular momentum is constant where there's no net torque Sal Khan video https://cdn.kastatic.org/googleusercontent/Q581n9eDp5ZbNQnjmuV8IiDLYz0AlC3HQBA3s0QCg8gBDUautlQKiUDZW54TZUaJa1JPQnXk2qtj-zMbflYLSlM Constant angular momentum when no net torque Just like how linear momentum is constant when there's no net force, angular momentum is constant where there's no net torque https://cdn.kastatic.org/ka-youtube-converted/CbeCE1HoGfA.mp4/CbeCE1HoGfA.mp4 356 Conservation of momentum and its applications https://www.khanacademy.org/science/in-in-class11th-physics/in-in-class11th-physics-work-energy-and-power/in-in-class11th-physics-work-energy-and-power-elastic-and-inelastic-collisions/v/elastic-and-inelastic-collisions 2025-01-25T17:06:55.244856264Z Elastic and inelastic collisions In an elastic collision, the total final kinetic energy of the system is equal to the total initial kinetic energy of the system. In an inelastic collision, the total final kinetic energy of the system is less than the total initial kinetic energy of the system because some of the energy is dissipated as other forms of energy. In a perfectly inelastic collision, the objects stick together and move together after the collision. David SantoPietro video https://cdn.kastatic.org/googleusercontent/TTh5hyAA8WkHHe0KC5QY1AnINFCXTHdEJiFDOggz1fpLHAA8i46gurnKzasbeTCoa3cAYxUrOuR5GABypC3R7kBB Elastic and inelastic collisions In an elastic collision, the total final kinetic energy of the system is equal to the total initial kinetic energy of the system. In an inelastic collision, the total final kinetic energy of the system is less than the total initial kinetic energy of the system because some of the energy is dissipated as other forms of energy. In a perfectly inelastic collision, the objects stick together and move together after the collision. https://cdn.kastatic.org/ka-youtube-converted/8OB8eIPgEkQ.mp4/8OB8eIPgEkQ.mp4 865 Conservation of momentum and its applications https://www.khanacademy.org/science/ap-college-physics-1/xf557a762645cccc5:linear-momentum/xf557a762645cccc5:untitled-303/e/inelastic-collisions-ap1 2026-02-06T04:22:50.396963225Z Elastic and inelastic collisions Practice identifying properties of elastic and inelastic collisions. exercise https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:force-pairs-and-momentum/x6679aa2c65c01e53:momentum/e/understand-conservation-momentum 2024-08-21T14:03:08.681843606Z 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/ap-college-physics-1/xf557a762645cccc5:linear-momentum/xf557a762645cccc5:untitled-303/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