Solving F=GmM/r^2 for r: What's Next?

Thread starter igore
Start date Jan 22, 2005

AI Thread Summary

To solve the equation F=GmM/r^2 for r, the first step is to rearrange it to F/GmM=1/r^2. The next step involves inverting the fractions, which can be done without altering the other side of the equation. After inverting, taking the square root will yield the value of r. This method effectively isolates r from the original equation.

Jan 22, 2005

igore

I'm trying to solve F=GmM/r^2 for r. I'm at F/GmM=1/r^2. What do I do next to isolate r?

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Jan 22, 2005

dextercioby

Science Advisor

Insights Author

How about invert the fraction and then take square root??

Daniel.

Jan 22, 2005

igore

I can invert the fraction without doing anything to the other side of the equation?

Jan 22, 2005

dextercioby

Science Advisor

Insights Author

Of course u have to invert both fractions.I thought it was obvious...

Daniel.

Jan 22, 2005

igore

Awesome thanks.

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