This physics video tutorial explains how to solve conservation of momentum in two dimension physics problems. The total momentum in the x direction and in the y direction must be conserved separately. Inelastic Collisions occur when momentum is conserved when kinetic energy is not conserved especially in the case when two objects stick together after a collision. Elastic collisions occur when both momentum and kinetic energy are conserved. Objects bouncing off each other usually occur during an elastic collision.

Impulse and Momentum:
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Conservation of Momentum:
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Rocket Propulsion:
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Inelastic Collisions:
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Impulse Momentum Theorem:
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Force-Time Graphs:
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Elastic Collisions:
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Impulse & Momentum Test Review:
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Intro to Rotational Motion:
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