Questions
A person can jump to a height of 3m on the earth on a planet of densityrd that of the earth and radius of the earth, he can jump to a height of
detailed solution
Correct option is C
PEe=PEp⇒mgehe=mgphphP=gehegp---(1)g=43πGRρgegp=ReRpρeρp=ReRe2ρeρe3=6----(2)substitute in (1)hP=gehegp=6×3=18mTalk to our academic expert!
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A shell of mass M and radius R has a point mass m placed at a distance r from its centre. The gravitational potential energy U (r) vs r will be
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