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# Gravitational potential Watch

1. Two equal masses are a distance r apart what is the gravitational potential at the mid point between them ? The answer is - 4gm/r

Really stuck on how to get this value ? I think you add the two potentials from either side but don't understand fully
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Just quoting in Puddles the Monkey so she can move the thread if needed
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3. (Original post by HG1)
Two equal masses are a distance r apart what is the gravitational potential at the mid point between them ? The answer is - 4gm/r

Really stuck on how to get this value ? I think you add the two potentials from either side but don't understand fully
Set up a system where there are two equal masses r apart and integrate a particle with unit mass from the middle to infinity.

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Updated: April 21, 2016
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