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Coco12
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Homework Statement
The radius of the Earth is 6400km. A 7200n spacecraft travels away from the earth. what would be the weight of the spacecraft at the following distances from the Earths surface: 6400km, 12800km
Homework Equations
Fg=mg
F=Gm1m2/r^2
The Attempt at a Solution
Just want to confirm I'm doing this right
So first I want to find the mass of the spacecraft so I use the fg=mg formula. I know that the mass of the Earth is 5.98*10^24kg.
Gravitational constant is 6.67*10^-11
I use the universal gravitation formula
The r will just be the radius of the Earth PLUS the distance from the Earth's surface. (Converted to m)
Then just plug into the equation. Am I doing this right?