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In physics, there is a peculiar value called velocity times mass that is treated as important.
- This is because of the law of conservation of momentum.
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In physics, we deal with things that are invariant.
- Things like energy, mass, and momentum.
- These are just one of the countless physical quantities.
- However, they have conservation laws.
- In other words, they are invariant.
- That’s why they are given special names and treated as important, I suppose.