Question

Two sphere of same material of density 800 kg/m3 and redious 1m are in contact of each other then gravitational force between them is about

Answer 1

Answer:

the mass of each sphere is given by: 

M=volume×density=34πr2×d 

now distance between the centers of the two spheres =2r so gravitational force between them (F)=(2r)2GMM

⇒F=9×416Gπ2r2d2r6

So F is directly proportional to d2r4

hope it helps you

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