$3-19$E$.$ For the hydraulic jack of Figure $3-32,$ a force of $100$ lb is exerted on the small piston.

Determine the upward force on the large piston. The diameter of the small piston is

$2$ in and the diameter of the large piston is $6$ in$.$

gure $3-32.$ System for

xercise $3-15.$

$3-22$E$.$ Two hydraulic cylinders are connected at their piston ends $($cap ends rather than rod

ends$)$ by a single pipe. Cylinder A has a $2-$in diameter and cylinder B has a $4-$in

diameter. A $500-1b$ retraction force is applied to the piston rod of cylinder A$.$

Determine the

a$.$ Pressure in cylinder A

b$.$ Pressure in cylinder B

c$.$ Pressure in the connecting pipe