Question

8. A uniform ring of mass m and radius a is placed directly
above a uniform sphere of mass M and of equal radius.
The centre of the ring is at a distance V3 a from the centre
of the sphere. Find the gravitational force exerted by the
sphere on the ring.
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Answer 1

Answer:

uniform ring of mass m and radius r is placed directly above a uniform sphere of mass M and of equal radius. The centre of the ring is directly above the centre of the sphere at a distance r3 as shown in the figure. The gravitational force exerted by the sphere on the ring will be.