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    Hi my teacher is telling us to derive:

    potential energy, v= -Gm/r from:

    Gravitational potential energy (GPE) = -Gmm/r and work= gpe/mass

    Do we even need to know this???... it doesn't say it in the spec, she just confuses the class.
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    (Original post by LORD_LFC_5)
    Hi my teacher is telling us to derive:

    potential energy, v= -Gm/r from:

    Gravitational potential energy (GPE) = -Gmm/r and work= gpe/mass

    Do we even need to know this???... it doesn't say it in the spec, she just confuses the class.
    V = -GM/r is gravitational potential NOT gravitational potential energy.

    To derive gravitational potential, you can do it from fundamental that is using calculus or from the definition of gpe -GMm/r and divide gpe by mass.
 
 
 
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