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In the formula $g = \dfrac{GM}{r^2}$, what does $G$ represent?

  1. The acceleration due to gravity
  2. A gravitational constant that is the same everywhere in the universe
  3. A gravitational constant that is inversely proportional to the radius
  4. The factor by which you multiply the inertial mass to obtain the gravitational mass
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Solution Video

OpenStax College Physics for AP® Courses Solution, Chapter 6, Problem 3 (Test Prep for AP® Courses) (0:12)

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This is College Physics Answers with Shaun Dychko. This capital G is the universal gravitational constant, that is presume to be the same everywhere in the universe.