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Jizordyn
Oct 7, 2009, 04:41 PM
How do you know which equation to use when answering a question when you are no given things such as time, velocity, or distance on gravity problems?
Unknown008
Oct 8, 2009, 12:14 AM
Well, if it's about gravity, the first formula is:

F = \frac{GMm}{r^2}

Given force and masses, you can find the distance...

or are you asking something else?