Units of measurement
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Millimeter per second (mm/s)
Mile per hour (mph)
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Information
Millimeter per second (mm/s)
Millimeter per second (mm/s) is a unit of speed equal to one millimeter traveled per second. It is used for measuring small speeds in engineering and science.
Mile per hour (mph)
Mile per hour (mph) is a unit of speed equal to one mile traveled per hour. It is used in the United States and the United Kingdom to measure vehicle and aircraft speeds.