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An accident reconstruction technician calculates that a car was traveling at 33 meters per second at the time of impact. If 1 mile= 1.6 km, how fast was the car traveling in miles per hour?

Respuesta :

Answer: The speed of the car in miles per hour is 74.25 miles/hr.

Explanation:

We are given that car is travelling with a speed of 33 m/s and we need to convert it into miles/hr.

For that we use the conversions:

1 kilometer = 1000 meters

1 mile = 1.6 kilometer = 1600 meters

[tex]1m=\frac{1}{1600}km=\frac{1}{1600}mile[/tex]

1 hour = 3600 seconds

[tex]1s=\frac{1}{3600}hr[/tex]

Now, converting the speed of car from m/s to miles/hr, we get:

[tex]\Rightarrow (\frac{33m}{s})(\frac{1mile}{1600m})=\frac{33miles}{1600s}\\\\\Rightarrow (\frac{33miles}{1600s})(\frac{3600s}{1hr})=\frac{(33\times 3600)miles}{1600hr}\\\\\Rightarrow 74.25miles/hr[/tex]

Hence, the speed of the car in miles per hour is 74.25 miles/hr.

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