how is speed measured?
2007-10-24 13:21:09 · 2 answers · asked by Sarah S 3 in Science & Mathematics ➔ Physics
Speed is a measure of physical displacement over a given time.
Strictly speaking, this is the average speed, because the object may or may not change it's speed during the time interval.
Example: A car travels a total of 17 miles during a 30 minute time interval, including slowing down for other traffic, stop signs, traffic lights, etc. The car, nevertheless, covered a distance of 17 miles in 30 minutes, making its average speed 34 miles/hour. (Regardless of direction of travel.)
2007-10-31 12:56:39 · answer #1 · answered by farwallronny 6 · 0⤊ 0⤋
http://www.staff.amu.edu.pl/~romangoc/M1-1-measure-speed-velocity.html
http://www.warren-wilson.edu/~physics/physics2/SpeedOSound/Spdsound.html
2007-10-24 15:35:49 · answer #2 · answered by Ginnykitty 7 · 0⤊ 0⤋