Questions
The mass of the moon is 1/81 of the earth but the gravitational pull is 1/6 of the earth. It is due to the fact that
detailed solution
Correct option is B
Gravitational pull depends upon the acceleration due to gravity on that planet.∴ Mm=181Me,gm=16geg=GmR2⇒ReRm=MeMm×gmge1/2=81×161/2Re=96RmTalk to our academic expert!
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A uniform ring of mass M and radius r is placed directly above a uniform sphere of mass 8 M and of same radius R. The centre of the ring is at a distance of d = R from the centre of the sphere. The gravitational attraction between the sphere and the ring is
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