Engineering Handbook/Force

Force	Formula
Gravity Force	$F_{g} = G \frac{m M}{r^{2}}$
Motion Force	$F_{a} = m a = \frac{m v}{t} = \frac{p}{t}$
Elastic Force	$F_{s} = F$ $- k x = m \frac{d^{2} x}{d t^{2}}$ $- k y = m \frac{d^{2} y}{d t^{2}}$
Electrostatic Force	$F_{Q} = K \frac{Q_{+} Q_{-}}{r^{2}}$
Electromotive Force	$F_{E} = Q E$
ElectromoMagnetomotive Force	$F_{B} = \pm Q v B$
ElectroMagnetic Force	$F_{E} B = F_{E} + F_{B} = Q (E \pm v B)$

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