What is the ratio of momentum @ M and N? (No friction)

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1 Answer
May 8, 2018

Assuming that the object was at rest at point K, the answer is 2:3

Explanation:

According to the work energy theorem,

  • Kinetic energy at M = 4F x
  • that at N =9 F x

The ratio of kinetic energies is 4:9

Since KE propto p^2, we have

  • momentum at M : that at N = 2:3