Question

three uniform spheres each having mass M and radius 'a' are kept in such a way that each touch the other two. The magnitude of the gravitational force on any of the spheres due to the other two is found to be root 3GM^2/ka^2.Find the value of K.
It's my challenge can anyone solve this. If he can then solve it with procedure.

Answer 1

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Answer 2

I don't know how to solve it properly but the answer will be k=4

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