Engineering Handbook/Force

Force	Formula
Gravity Force	$F_{g}=G{\frac {mM}{r^{2}}}$
Motion Force	$F_{a}=ma={\frac {mv}{t}}={\frac {p}{t}}$
Elastic Force	$F_{s}=F$ $-kx=m{\frac {d^{2}x}{dt^{2}}}$ $-ky=m{\frac {d^{2}y}{dt^{2}}}$
Electrostatic Force	$F_{Q}=K{\frac {Q_{+}Q_{-}}{r^{2}}}$
Electromotive Force	$F_{E}=QE$
ElectromoMagnetomotive Force	$F_{B}=\pm QvB$
ElectroMagnetic Force	$F_{E}B=F_{E}+F_{B}=Q(E\pm vB)$