The helicopter view in the figure below shows two people pulling on a stubborn mule. Assume that $F_1$ is $130N,$ and $F_2$ is $70N.$ The forces are measured in units of newtons $(N).$

$($a$)$ Find the single force that is equivalent to the two forces shown.

$($b$)$ Find the force that a third person would have to exert on the mule to make the net force equal to zero.

magnitude

N

direction Your response is within $10\%$ of the correct value. This may be due to roundoff erron, or you could have a mistake in your calculation. Carry out all intermediate result the $+x-$axis$)$

DO THE ONES THAT ARE INCORRECT