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STatiana [176]
3 years ago
14

How is reflection used in the process of finding the speed of a vehicle?

Physics
1 answer:
Softa [21]3 years ago
7 0
The reflection is measured sometimes when Determining the speed of a vehicle with a LIDAR or RADAR gun.
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1.A) 4.9 m  

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The instant it was dropped, the ball had zero speed.


After falling for 1 second, its speed was 9.8 m/s straight down (gravity).


Its AVERAGE speed for that 1 second was (1/2) (0 + 9.8) = 4.9 m/s.


Falling for 1 second at an average speed of 4.9 m/s, is covered 4.9 meters.


ANYTHING you drop does that, if air resistance doesn't hold it back.


Read more on Brainly.com - brainly.com/question/11776597#readmore

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If you just type "<span>What is the chemical formula for mercury(I) nitrate?" into google you get the answer but HG(NO3)2 is the correct one.
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