Describe FPS system.

1. The foot pound second system or FPS system is a system of units built on the three fundamental units foot for length, pound for either mass and second for time.
2. The foot-pound-second (fps) system of units is the scheme used for measuring the dimensional and material quantities.
   2.1- Foot: foot (1 ft) represents a length of 12 inches. The inch was originally defined as the length of three typical barleycorns laid end-to-end.
   2.2- Pound: Pound (1 lb) is the force that produces an acceleration of 32.1740 feet per second squared (32.1740 ft/sec²) when applied against a known standard mass.
   2.3-Second: One second (1 s or 1 sec) is the time that elapses during 9.192631770 x 10⁹ cycles of the radiation produced by the transition between two levels of Cesium 133. It is also 1/86,400 of a mean solar day.