A piston-cylinder device is filled with air. Initially, the piston is stabilized such that the length of the cylinder beneath the piston is 0.15 m. The piston has a diameter of 0.10 m. A weight with mass of 17.5 kg is placed on top of the piston, and the piston moves 0.030 m, such that the new length of the air-filled cylinder beneath the piston is 0.12 m. Determine the work done by the newly-added mass.

Given: x1 = 0.15 m; x2 = 0.12 m; D = 0.10 m; m = 17.5 kg

Assume: g = 9.81 m/s2

What will be an ideal response?


The force exerted by the mass equals the weight of the mass: W= mg = (17.5 kg)(9.81

m/s2) = 171.7 N



The negative sign indicates that this is work that is adding energy to the system – the air

under the piston in the cylinder

Trades & Technology

You might also like to view...

In a DC contactor, what provisions help to minimize heavy arcing that burns the contacts?

What will be an ideal response?

Trades & Technology

The final choice of piping material for many applications, including fuel gases, is often controlled by _____

A) building codes B) the material cost C) personal preference D) the installing contractor

Trades & Technology

If no current flows through the base of the transistor, the transistor acts like a closed switch.

Answer the following statement true (T) or false (F)

Trades & Technology

An advantage of _____ sketching is that it allows round components on the front to be drawn round rather than elliptical.

A. perspective B. axonometric C. isometric D. oblique

Trades & Technology