Changes

Note that speed is a [[scalar]], therefore it has no direction, and because it is a measure of magnitude, it is never negative.

Note that speed is a [[scalar]], therefore it has no direction, and because it is a measure of magnitude, it is never negative.

Like velocity, units for its measurement are [[meter]]s/[[second]] (m/s), and more commonly in informal circumstances [[kilometer]]s/[[hour]] (kph) and [[mile]]s/[[hour]] (mph).

Like velocity, units for its measurement are [[meter]]s/[[second]] (m/s), and more commonly in informal circumstances [[kilometer]]s/[[hour]] (kph) or (km/h) and [[mile]]s/[[hour]] (mph) or (MPH).

==References==

==References==