3. Weight of a body is only 75% of that on the surface
of earth, then the height of the body from earth is
(a) 500 km (b) 800 km (c) 250 km (d) 1600 km
Answer please
Answers
Answered by
0
Answer:
800 km
Explanation:
Answered by
0
Answer:
Acceleration due to gravity at height h from earth surface is:
g
′
=g(1−
R
2h
)
g
g
′
=(1−
R
2h
)
100
75
=(1−
R
2h
)
100
25
=
R
2h
h=
8
R
=
8
6.4×10
6
=8×10
5
m=800km
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