calclus

Is it possible to accurately approximate the speed of a passing car while standing in the
protected front hall of the school?
Task: Determine how fast cars are passing the front of the school. You may only go
outside to measure the distance from where you are standing to the road. All
other measurements must be taken from inside the building (I want you to stay
warm and dry!). Make sure to clearly explain your process to gauge the speed of
passing cars and submit all of your work!

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  1. It must be possible... because that is how a radar detector works : )
    Think about what the teacher has allowed you to measure and what you know about the speed formula : )

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  2. I think I would use a angle measure with the eye to find some point on the road, and the perpendicular. Knowing the distance of the perpendicular, and the angle, and measuring the time it takes the car to move one the road. you have speed.
    Distance on road=distance to road*tanAngle
    speed= distanceonroad/time=distancetoroad*tanAngle/time

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    bobpursley

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