Question

derive expression for law of conservation of momentum​

Answer 1

Answer:

Newton's third law states that for a force applied by an object A on object B, object B exerts back an equal force in magnitude, but opposite in direction. This idea was used by Newton to derive the law of conservation of momentum. ... B=m_{2}(v_{2}-u_{2}) (change in momentum of particle B)

Elastic collision in two dimension: energy trans...

About refrigerator: what is contact force

Explanation:

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