The forces F$1,$ F$2,...,$ Fn acting at the same point P are said to be in equilibrium if the resultant force is zero, that is$,$ if F$1+$ F$2++$ Fn $=0.$

$1086$

$($a$)$ Find the resultant force acting at P$.($Round your answers to two decimal places.$)$

$13\mathrm{.}03$

$($b$)$ Find the additional force required $($if any$)$ for the forces to be in equilibrium. $($If an answer does not exist, enter DNE. Round your answers to two decimal places.$)$

$125,54$