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Newtonian Gravity questions

Before I inundate you with various elementary problems I'm facing, I need help with the concept.

Fgrav=(GMm)/(r^2)

So Fgrav is in units of Newtons, correct? How would one convert that to m/s?
 

Answers and Replies

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Gravity is just a force an object with mass experiences, which can be translated to acceleration with Newton's 2nd Law, F=ma. It has nothing to do with velocity (which has units m/s). However you can turn it into units of m/s^2, which is the units of acceleration with the above mentioned law: a=F/m, therefore:
[tex]
a_{gravity}=\frac{GM}{r^2}
[/tex]

Where M is the mass of the object that is creating the gravitational field, not the "accelerating object".
 
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