M s
Metres per second is an SI derived unit of speed (scalar) and velocity (vector), defined by distance in metres divided by time in seconds. The unit is given as m/s.
Some examples of speeds in m/s:
- 0.013 m/s = 1.3 cm/s — speed of a garden snail crawling
- 0.08 m/s = 8.0 cm/s — the top speed of a sloth
- 1m/s — a typical human walking speed; below a speed of about 2 m/s, it is more efficient to walk than to run, but above that speed, it is more efficient to run
- 1 m/s — the speed of signals (action potentials) traveling along axons in the human cortex
- 28 m/s — a car travelling at 60 miles per hour (mi/h or informally mph) or 100 kilometres per hour (km/h); also the speed a cheetah can maintain
- 120 m/s — the maximum speed of signals (action potentials) traveling along myelinated axons in the spinal cord
- 343 m/s — approximately the speed of sound under standard conditions, which varies according to air temperature; the land speed record (set in 1997) is just 2 m/s less than this
- 559 m/s — the average speed of Concorde's record Atlantic crossing (1996)
- 103 m/s — the speed of a typical rifle bullet
- 3 × 108 m/s — approximately the speed of light.
1 metre per second = 3.2808 feet per second = 2.2369 miles per hour = 3.6 km/h.
See also
