The Foot-Pound-Second (FPS) System of Units
Description
Examples
The FPS system of units has the foot, pound, and second as its base units. Unlike modern systems of units, composite dimensions are not necessarily represented by a product of powers of the base units. For example, the unit of power, the horsepower, is not equal to one square foot pound per cubic second.
When used in conjunction with the UseSystem command, the FPS system sets the following units for the given dimensions.
Dimension Name
Unit Name
length
foot
mass
pound
time
second
plane angle
radian
solid angle
steradian
force
poundal
energy
poundal*foot
power
horsepower
pressure
poundforce/inch^2
Notes:
To enter a unit in 2-D Math input, select the unit from the appropriate Units palette. If the unit you want is not there, select unit and then enter the unit.
When you edit a unit, double brackets appear around it.
UnitsUseSystem⁡'FPS'
with⁡UnitsStandard:
5⁢'ft'2⁢'pound''s'2
5⁢lb⁢ft2s2
combine⁡,'units'
5⁢poundal⁢foot
's'
304810787315⁢hp
'yard'2
59⁢lbs3
See Also
Units
Units/Index
Units/Standard
Units/Systems
Units[UseSystem]
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