Question $3$

A $40-$N axial force at B is required to open the spring$-$loaded plunger of the water nozzle. Determine the required force $F$ applied to the handle at A and the magnitude of the pin reaction at $O.$ Note that the plunger passes through a vertically$-$elongated hole in the handle at $B,$ so that negligible vertical force is transmitted there.

Answers:

$F=$

N

$0=$

$N$