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2 cards from this section. Quick, good the night before a test.
Define linear momentum.
Think about how mass and speed combine to describe motion.
What is the center of mass?
Consider where a system balances if it were to be supported.
What is linear momentum defined as?
It describes how much motion an object has.
True or False: If no external forces act on a system, the total momentum will change.
Consider how momentum behaves in isolated systems.
A 4 kg cart moving at 5 m/s collides with a stationary 2 kg cart. If they stick together after the collision, what will be their final velocity?
Use the conservation of momentum principle.
Two ice skaters push off from each other. Skater A has a mass of 50 kg and moves at 1.5 m/s away from Skater B, who has a mass of 70 kg. Determine the speed of Skater B after the push.
Remember to consider the direction of their velocities.
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