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Gravitational force at midpoint between 2 equal massive bodies

  1. Apr 24, 2012 #1
    Does a particle placed midway between 2 massive bodies experience weightlessness? Is gravity zero at this point or we just have 2 equal and opposite forces resulting in net acceleration of zero? In other words, if we pulled or pushed a particle in opposite directions but with equal force, the net force on the particle would be zero so the particle will not move in either direction, but the particle will be under stress from the 2 forces right? My question is whether the situation at the midpoint of two equal massive bodies equates to zero force as if being in outer free space or its equivalent to being pulled with equal force in 2 directions.
  2. jcsd
  3. Apr 24, 2012 #2


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    For a point mass there is no difference between no forces and zero net force. An extended object is pulled apart by tidal forces at any point of a non-uniform gravitational field.
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