Physics 5054 · O Level · Forces

Forces — practice question

The four gravitational forces acting between objects in the Solar System are given below. P: the force on the Moon due to the Earth. Q: the force on the Earth due to the Sun. R: the force on the Earth due to the Moon. S: the force on the Moon due to the Sun. Which two forces form a Newton’s third law pair?

  • AP and Q
  • BP and R
  • CQ and S
  • DR and S

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