Gravity of the Earth if its mass were doubled

  • #1
New user's thread moved to the Homework Help forums (it is for self stucy), so no Template is shown
What would be the value of gravity on the surface of the earth if its mass was twice as large and its radius half of what it is now?
 

Answers and Replies

  • #2
berkeman
Mentor
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What would be the value of gravity on the surface of the earth if its mass was twice as large and its radius half of what it is now?
Welcome to the PF. :smile:

What have you found for the equation for gravitational force in your searching and reading so far? Also, is this a schoolwork question?
 
  • #3
mathman
Science Advisor
7,889
460
Your question leads to a density increase by a factor of 16, What would you use to make such a planet???
 

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