Net Positive or Negative Force

Two forces can add or subtract to the net force when the forces act on each other. Forces in the same direction working togeather equal a net force.

Net Positive Force formula
$F_n \;=\; F_1 + F_2$ (Net Positive Force) $F_1 \;=\; F_n - F_2$ $F_2 \;=\; F_n - F_1$
Symbol	English	Metric
$F_n$ = Net Force	$lbf$	$N$
$F_1$ = Force 1	$lbf$	$N$
$F_2$ = Force 2	$lbf$	$N$

Net Negative Force formula
$F_n \;=\; F_1 - F_2$ (Net Negative Force) $F_1 \;=\; F_n + F_2$ $F_2 \;=\; F_1 - F_n$
Symbol	English	Metric
$F_n$ = Net Force	$lbf$	$N$
$F_1$ = Force 1	$lbf$	$N$
$F_2$ = Force 2	$lbf$	$N$