A $270-N$ force $P$ is applied at point $A$ of the bell crank shown.

NOTE: This is a multi$-$part question. Once an answer is

submitted, you will be unable to return to this part.

Using the result of part $a,$ determine the perpendicular distance from $O$ to the

line of action of $P.$

The perpendicular distance from $O$ to the line of action of $P$ is

mm $.$