The foot per second (plural feet per second) is a unit of both speed (scalar) and velocity (vector quantity, which includes direction).
[1] It expresses the distance in feet (ft) traveled or displaced, divided by the time in seconds (s).
[2] The corresponding unit in the International System of Units (SI) is the meter per second.
Abbreviations include ft/s, fps, and the scientific notation ft s−1.
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