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mi/h to km/s
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mile per hour
- Definition: Mile per hour (mph) is a unit of speed that indicates the number of miles traveled in one hour.
- Symbol: The symbol for mile per hour is “mph”.
- Usage: This unit is commonly used in the United States and the United Kingdom to measure vehicle speed and other forms of speed in everyday life.
kilometer per second
- Definition: Kilometer per second (km/s) is a unit of speed that represents the number of kilometers traveled in one second.
- Symbol: The symbol for kilometer per second is “km/s”.
- Usage: This unit is often used in scientific contexts, particularly in fields like astronomy and physics, to express high speeds.
Origin of the mile per hour
- The mile per hour has its origins in the imperial system of measurement, which has roots in ancient Roman and British systems. The mile itself is derived from the Roman “mille passus,” meaning “a thousand paces,” and was standardized in the 16th century in England.
Origin of the kilometer per second
- The kilometer per second is part of the metric system, which was developed in France in the late 18th century. The kilometer, equal to 1,000 meters, was established as a unit of length, and the second, a unit of time, has its origins in ancient timekeeping practices.
mile per hour to kilometer per second Conversion
Conversion Table:
h | s |
10 mile per h | 0.0044704 kilometer per s |
20 mile per h | 0.0089408 kilometer per s |
30 mile per h | 0.0134112 kilometer per s |
40 mile per h | 0.0178816 kilometer per s |
50 mile per h | 0.022352 kilometer per s |
Practical Applications
Everyday Use Cases
- Driving Speed: Knowing the speed of vehicles is crucial for safety and obeying traffic laws.
- Fitness Tracking: Runners and cyclists often monitor their speed in mph for performance improvement.
Professional Applications
- Transport Logistics: In the logistics industry, speed measurements help in planning delivery times.
- Automotive Engineering: Engineers use mph and km/s in performance testing and design specifications.
Scientific Research
- Astronomy: Speeds of celestial objects are often measured in km/s for clarity at astronomical distances.
- Physics Experiments: High-speed phenomena, like particle collisions, are measured in km/s for precise calculations.