Equations for Force

[HollowSuperet36]

So I've learned it helps alot to play around with units and equations to help solve complicated problems easily.

Anyway, just wanted to put up my equations for force and see if there are any derivations Im overlooking for the whole picture.

F = ma = ma-T = (mv^2)/r = Gmm/r^2 = kqq/r^2 = qvbsin@ = ILB = Eq = Pressure * A = -kx = Density * V * g = Power / Velocity

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[MedPR]

Just making a list of all the different types of forces and force equations?

 

[HollowSuperet36]

yeah just because I have had numerous questions on all FL's that require the cross conversion using multiple equations equated together. Just seeing if there is anything I forgot.

 

[MedPR]

yeah just because I have had numerous questions on all FL's that require the cross conversion using multiple equations equated together. Just seeing if there is anything I forgot.

What's the density*v*g one?

 

[HollowSuperet36]

Force buoyant.

For specfic gravity questions I use that and then D=m/v. 2 step strategy that works well for me.

 

[Class1P]

shouldn't your Gmm/r be an r squared?

 

[chiddler]

what's ILB?

 

[folktale]

what's ILB?

I believe that's force induced by a magnetic field on a length of wire carrying a specific current. Force is maximized if the B-field is perpendicular to the wire.

 

[MT Headed]

This is really cool. I'd also want to throw momentum in there. Momentum is force times time, so you could add: F = P/t

or this might be easier to read: F = mv/t

I kind of like the second one, because I can never remember what P stands for, and it's easy to derive: F = ma = m(v/t) = mv/t