A body raised from the center of the earth equal to the 4 times of the radius of the earth then the gravity at that pint will be
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Explanation:
Increase in potential energy
ΔU=U
2
−U
1
=[−
(R+
5
R
)
GMm
]−[−
R
GMm
]
=
R
GMm
−
6R
5GMm
=
6R
GMm
=
6R
gR
2
m
=
6
mgR
=mg.
6
5h
=
6
5
mgh
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