world record speed of the fastest snail in the Congham,UK World snail racing championships (http://www.west-norfolk.gov.uk/westnorfolk/tourism.nsf/pages/WorldSna083042.html).
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 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 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
the current land speed record, which was was set by ThrustSSC in 1997. This was supersonic (Mach 1.016) in the Black Rock desert at the time, but might not have been supersonic in other places.
The SI derived unit of force, the newton, is equal to one "kilogram metrepersecond squared", meaning that a force of one newton is needed to give an acceleration of one metrepersecond squared to a mass of one kilogram.
This is an illustration of Newton's second law (see Newton's laws of motion) in its simplest form, where acceleration is defined as the rate of change of velocity.
The metre (American spelling: meter), symbol: m, is the basic unit of distance (or of length, in the parlance of the physical sciences) in the International System of Units.
Miles per hour is a unit of speed, expressing the number of international miles covered per hour.
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