Speed Calculation Formulas
See also: Speed trainingSpeed is calculated by dividing the distance by the time it takes to cover it. In the SI (International System of Units), speed is expressed in meters per second (m / som * sec-1), since distance and time are expressed in meters (m) and seconds (s) respectively.
Summarizing everything in a formula, we would have that:
Calculation Speed (m / s) = Distance in meters / Time in seconds
The calculation of the speed is therefore a fairly simple operation; more "problems" can instead be encountered in expressing it with different units of measurement, for example when one is asked to convert from m / s to Km / h and vice versa. Let's get to the answer step by step.
Conversioni m/s - Km/h
Keeping in mind that one hour equals 3600 seconds (60 minutes x 60 seconds each), walking at a constant speed of one meter per second travels 3600 meters (3,6 km) per hour. We can therefore state that:
1 m/s = 3,6 Km/h
Since this is a simple equation, to calculate a known speed in km / h in m / s we must multiply it by 3,6. Conversely, to switch from Km / ham / s the speed must be divided by 3,6.
- From m / s to km / h: multiply the speed by 3,6
- From km / ham / s: divide the speed by 3,6
If we want to know how many centimeters per minute a speed of 27 decimeters per hour equals, we have to think in a similar way. We therefore have that 27 decimeters equals 270 centimeters, while one hour is equivalent to 60 minutes; therefore, 27 dm / h is equivalent to 4,5 cm / min (270/60).
