Momentum and Collisions Theory Part 1
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All Comments (10)
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No momentum is only conserved in the absence of an external force.
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You teach very well I find your videos great for my physics review test! thanks alot!
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@schnappy00 The system is the car and the tree, so the momentum is not conserved for the system. It's just a point of reference sort of thing. Momentum is conserved in this universe, but that is all. The abstraction of the system allows for momentum to not be conserved.
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thank you for sharing this helpful clip
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I think he got it wrong, the momentum of ANY collision is conserved, but the Kinetic energy isn't.
The tree and car is an example of an inelastic collision, the momentum is conserved, but the kinetic energy isn't.
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nice
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wich coll do u teach for? and wat class i mean which standard 11 or 12
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very nice thanx
this is a good review for test
zipobob1 2 years ago 7
Momentum is always conserved. The momentum is transferred to the Earth, making it spin faster. The speeding up of the car made the Earth spin slower, so the momentum is still constant.
The car + the tree are not an isolated system.
schnappy00 2 years ago 6