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4 cards from this section. Quick, good the night before a test.
Define momentum.
Think about the formula you learned.
What is an elastic collision?
Relate it to sports like billiards.
What is conserved in all collisions?
Think about what happens before and after a collision.
In an elastic collision, is kinetic energy conserved?
Remember the definitions of collision types.
Two carts collide elastically. Cart A has a mass of 2 kg and is moving at 4 m/s toward Cart B, which has a mass of 3 kg and is at rest. Calculate their final velocities after the collision.
Set up the equations based on known quantities.
A 5 kg ball moving at 20 m/s collides with a 10 kg ball at rest. If the collision is completely inelastic, find the final speed and the kinetic energy lost.
Apply the formulas you've learned for both parts.
4 more questions in this section. Enroll free to practise them all.
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