Answer:
995 N
Explanation:
Weight of surface, w= 4000N
Gravitational constant, g, is taken as 9.81 hence mass, m of surface is W/g where W is weight of surface
m= 4000/9.81= 407.7472
Using radius of orbit of 6371km
The force of gravity of satellite in its orbit, [tex]F=\frac {GMm}{(2r)^{2}}=\frac {GMm}{4(r)^{2}}[/tex]
Where [tex]G=6.67*10^{-11}[/tex] and [tex]M=5.94*10^{24}[/tex]
[tex]F=\frac {(6.67*10^{-11}*5.94*10^{24}*407.7472)}{4*({6.371*10^{6}m)}^{2}}[/tex]
F= 995.01142 then rounded off
F=995N
