A body of mass m rises to height h=R/5 from the earth's surface, where R is earth's radius. If g is acceleration due to gravity at earth's surface, the increase in potential energy is
(a)mg/h (b)mgh 5/6
(c)3/5 mgh (d)6/7 mgh
Answer is : (b)mgh 5/6
Asked by निकोदिमुस
5th December 2017,
7:13 PM
Answered by Expert
Answer:
height on ground=h=R
Increase in h= R/5 h=5R
Answered by Expert
7th December 2017,
10:41 AM
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