KEY TAKEAWAYS •
Momentum depends on the mass and velocity of a system; it is proportional to both components.
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Impulse is the amount of force applied over a specific period of time or the change in momentum.
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Impulse and momentum are vectors with direction and magnitude.
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In collisions between two objects in one or two dimensions, there will be conservation of momentum and kinetic energy in elastic situations but just conservation of momentum in inelastic situations.
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