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A Stop Watch

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Q: What instrument should be used to measure how fast a boy can run 100 meters?
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Can you measure how fast the wind is blowing and where it's blowing to.?

it is measured by an instrument called Anemometer


100 kilometers is how fast?

100 kilometers is a measure of length and distance, not speed. 100 km/h is a measure of speed, which is pretty fast.


How fast should a 3 year old boy run 100 meters?

faster than me


Which instrument is used to measuer how fast the wind is going?

Your speedometer! It tells you how fast you are going at that instant.All different types of devices are used to measure instantaneous velocity including chronographs, lasers, and radars.


How fast should you run the 100m if you are 52 kilos?

100:52kg x your height in meters squared


What is the instrument used to test the density of plastic?

you can measure the density of plastic using an instrument called electronic densimeter. this densimeter give you the density measurements very easily and fast. below is few models of this instrument.http://www.worldtesters.com/Tester_Meters/Densimeters.htm


Is measure how fast something is going?

no, measure is an amount, size, degree, etc. how fast something is going is the speed like 15 meters per second, 50 miles an hour etc.


How many meters per second in 125 km?

Doesn't work like that. Meters per second is a measure of speed. 125 km is a distance. There's no direct comparison between the two. You might as well as how fast a mile is.


What instrument measures how fast water boils?

a stopwatch


What is 50 kilometers to meters per hour?

None. 50 kilometres is a measure of distance. Metres per hour is a measure of speed or velocity. The two measure different things and it makes no sense to try and convert one to the other. The question is like asking how fast is the length of your room!


4.5 meters in 9 second how fast in kilometer per hour?

4.5 meters in 9 second how fast in kilometer per hour?


How fast is agbonlahor?

He runs the 100 meters in 9.98