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    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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    Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.

    You can also find the Exam Thread list for A-levels here and GCSE here. :dumbells:


    Just quoting in Puddles the Monkey so she can move the thread if needed
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    (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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