Homework Help: Pysics

Posted by Stephanie on Saturday, March 17, 2012 at 9:11pm.

Planet X has the same mass as earth, but its radius is only half as big. How does the gravity on this planet compare with the gravity on our planet earth?

physics - drwls, Sunday, March 18, 2012 at 11:05am
Hint: g at the surface is proportional to M/R^2.
M is the same for each.

Note the correct spelling of the subject
Pysics - Stephanie, Sunday, March 18, 2012 at 11:52pm
:) gremlins inhabit my keyboard!

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