Question on Newton's law of universal gravitation

AI Thread Summary
The discussion revolves around calculating the gravitational force on a spacecraft with twice the mass at a specific distance from Earth. The initial force of gravity is given as 900 N. The user recognizes that if the mass is doubled, the gravitational force should also change, but they are unsure how to apply the universal law of gravitation. They mention the relationship between the masses and distances but express confusion about the next steps in the calculation. Clarification on the application of Newton's law of universal gravitation is needed to solve the problem effectively.
Lolagoeslala
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Homework Statement


The force of gravity on a spacecraft some distance from Earth is 900 N. What will be the force of gravity on a spacecraft with twice the mass, at a distance from Earth’s centre that is as far?
 
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Lolagoeslala said:

Homework Statement


The force of gravity on a spacecraft some distance from Earth is 900 N. What will be the force of gravity on a spacecraft with twice the mass, at a distance from Earth’s centre that is as far?

Please read the forum rules about how to post homework problems. You have to show some attempt to solve it yourself so folks will know where you are stuck.
 
phinds said:
Please read the forum rules about how to post homework problems. You have to show some attempt to solve it yourself so folks will know where you are stuck.

Well all i know is that M2=2M1
Fe= 900 N
D2= 1/4D1

i don't know what to do next.. i am totally stuck..
 

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