a small ball of mass M is a dis†an ce R / 2 from the centre of a uniform spherical body of mass M .The force exerted on the small ball is (R is the radius of the sphere)

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A uniform sphere of mass $M$ and radius $R$ exerts a force $F$ on a small mass $m$ situated at a distance of $2 R$ from the centre $O$ of the sphere. A spherical portion of diameter $R$ is cut from the sphere as shown in the figure. The force of attraction between the remaining part of the sphere and the mass $m$ will be:

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