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January 29, 2015

January 29, 2015

Posted by **Sarah** on Friday, July 13, 2012 at 1:02pm.

- earth -
**drwls**, Friday, July 13, 2012 at 2:53pm(1/2) m Vescape^2 = G m M/R

The term on the right is the potential energy change necessary to escape.

m is the object's mass (which cancels out)

M is the planet's mass

G is the universal gravity constant

Vescape = sqrt(2G*M/R)

Do the numbers

- earth -
**Anonymous**, Thursday, April 3, 2014 at 12:51pmvescape=sqrt(2g*m/r)

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