mass of Earth is 81 times that of the moon and distance between their Centre is 4 into 10⁵ kilometre then the distance of a point from the centre of the Earth where the gravitational field of Earth balance is that of moon
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Explanation:
Explanation:
The gravitational force can be calculated with the formula:
∣
∣
∣
∣
∣
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
a
a
F
g
=
G
M
m
R
2
a
a
∣
∣
∣
−−−−−−−−−−−−−−−−
where:
F
g
=
gravitational force
G
=
gravitational constant
M
=
mass of Earth
m
=
mass of object
R
=
distance from earth's centre to object's centre
Substitute your known values into the formula to determine the gravitational force. Assuming that the person is standing on the surface of the Earth, the value of
R
would be the radius of the Earth.
F
g
=
G
M
m
R
2
F
g
=
(
6.67
×
10
−
11
N
⋅
m
2
k
g
2
)
(
5.98
×
10
24
k
g
)
(
75
k
g
)
(
6.37
×
10
6
m
)
2
F
g
=
737.24
N
F
g
≈
∣
∣
∣
∣
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
a
a
740
N
a
a
∣
∣
hope it helps!!!!
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