proof the formula p=mv
Answers
Answer:
F=MA is describing a force, while P=MV is actually momentum. The first equation states that a Force is equal to Mass times Acceleration, or Newton's second law of motion. The second one states that Momentum (P) is equal to Mass times Velocity.
Explanation:
Answer:
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In Newtonian mechanics, p⃗ =mv⃗ p→=mv→ is a definition of momentum rather than a law so it doesn’t need proving.
One consequence of this definition is that there is a law which says that in any collision where no external forces are applied, total momentum is always conserved.
A partial explanation of this is that the application of a force on a mass causes a change in momentum (known as an “impulse”). When two masses collide, one mass exerts a force on the other while the two masses are in contact. By Newton’s third law, the other mass exerts an equal force on the first mass but in the opposite direction. So one mass loses momentum and the other gains an equal amount of momentum and total momentum is conserved.