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Acceleration due to gravity

  1. Oct 16, 2003 #1
    Why do objects accelerate due to gravity?
  2. jcsd
  3. Oct 16, 2003 #2


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    It depends on the context. If you are talking first semester physics or something like that, then the acceleration is due to the force of gravity according to Newton's law: a = F/m. If you are talking more sophisticated as in general relativity, then objects accelerate because spacetime moves past them. The surface of the Earth accelerates upwards at a rate of about 10 m/s<sup>2</sup> with respect to spacetime.
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