AP Physics 1 Question 240: Answer and Explanation

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Question: 240

10. The dwarf planet Pluto has 1/500 the mass and 1/15 the radius of Earth. What is the value of g (in m/s2) on the surface of Pluto?

  • A.
  • B.
  • C.
  • D.

Correct Answer: D



The gravitational acceleration at the surface of a planet of mass M and radius R is given by the equation g = GM/R2. Therefore, for the dwarf planet Pluto: