Questions
An object weights 72 N on earth. Its weight at a height of R/2 from earth is
detailed solution
Correct option is A
W=mg=72N---(1) g'=GMR+h2=GM 1R+h2=GM 1R+R22=GM 13R22=GMR2 232=49g∵g=GMR2 ∴ W'=49×W=49×72=32NTalk to our academic expert!
Similar Questions
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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