Science- speed for vehicles, runners and swimmer
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Speed is the distance travelled in a certain time, and this can be measured differently for other sports. Speed = distance÷time (time taken to travel that distance)
For measuring the speed of vehicles, you use kilometres per hour- number of km travelled in one hour (km/h) You calculate the average number of kilometres travelled in one hour and divide it by one.
To calculate speed for runners and swimmers, you commonly use meters per second (m/s) You take the distance travelled and divide it by the time taken to travel that distance
If a swimmer swam 20 meters in 30 seconds, you would go 20÷30 which equals 0.66 m/s
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