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MMLU / Two people, one of mass 100 kg and the other of mass 50 kg, stand facing each…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Two people, one of mass 100 kg and the other of mass 50 kg, stand facing each other on an ice-covered (essentially frictionless) pond. If the heavier person pushes on the lighter one with a force F, then

choices

  1. the force felt by the heavier person is (-1/2)F
  2. the force felt by the person is -2F
  3. the magnitude of the acceleration of the lighter person will be half of the magnitude of the acceleration of the heavier person
  4. the magnitude of the acceleration of the lighter person will be twice the magnitude of the acceleration of the heavier person

subject

high_school_physics

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Source and history

Official source

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