Is how fast you're going...
-Speed is simply how far you've travelled in a certain time. The speed formula traingle is definitly the best way to do speed calculations.
SPEED IS DISTANCE OVER TIME... = SIDOT!
There are 3 common units for speed, however they are all similiar, i.e distance unit per time unit..
They are... Metres per second - m/s Miles Per hour -MPH Kilometres per hour- km/h