# Pressure problem

A hydraulic press for compacting powdered samples has a large cylinder which is x = 11.8Â cm in diameter, and a small cylinder with a diameter of y = 1.96Â cm (see figure).

A lever is attached to the small cylinder as shown. The sample which is placed on the large cylinder, has an area of 4.09Â cm2. What is the pressure on the sample if F = 319Â N is applied to the lever?

I have no idea how to solve this problem. Thanks for the help!

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#### Solution Preview

The first step is to figure out how much force is applied to the small cylinder. This is a torque problem:

F (2L) = F' L

F' = 2F = 2 (319) =638N

Next is to figure ...

#### Solution Summary

This solution is provided in 145 words. It uses torque to determine force, and then uses this information, along with Pascal's Principle, to find pressure.