Gravitational Force: Calculations & Examples

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DarkIndiglo
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See Attached Word Document :smile:
 

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This is pretty trivial algebra. If you are having trouble with this you need to find some help with your math.


[tex]F_g = \frac {G M_1 M_2} {r^2}[/tex]

I will do r^2 for you, you should be able to puzzle out the rest.
Multiply both sides by [itex]r^2[/itex]
[tex]F_g r^2 = \frac {G M_1 M_2 r^2} {r^2}[/tex]

Cancel the [itex]r^2[/itex] in the Right hand side.

[tex]F_g r^2 = G M_1 M_2[/tex]

Now divide both sides by [itex]F_g[/itex]

[tex]\frac {F_g r^2 } {F_g} = \frac {G M_1 M_2} {F_g}[/tex]

Now cancel the [itex]F_g[/itex] in the Left hand side to get

[tex]r^2 = \frac {G M_1 M_2} {F_g}[/tex]

Similar operations will isolate the other quantities you need.
 
Hehe
Thanks a lot, I just couldn't seem to rearrange this :smile: