A mass m is at a distance a from one end...

A mass m is at a distance a from one end of a uniform rod of length l and mass M. Find the gravitational force on the mass due to the rod.

`(GMm)/(l(a+l))`

`(GMm)/(a(l+a))`

`(GMm)/(al)`

`(GMm)/((l//2+a))`

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