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Imagine that you took a road trip. based on the information in the table, what was the average speed of your car? time mile marker 3:00 pm 38 8:00 pm 219 express your answer to three significant figures and include the appropriate units. use mi as an abbreviation for miles, and h for hours, or mph can be used to indicate miles per hour.

Respuesta :

skyluke89
The average speed can be calculated using the formula:
[tex]v= \frac{\Delta S}{\Delta t} [/tex]
where [tex]\Delta S[/tex] is the distance covered and [tex]\Delta t[/tex] the time between the initial and final point of the motion. In our problem, the distance covered is 
[tex]\Delta S = (219-38)~mi = 181~mi[/tex]
While the time is the number of hours between 8:00 pm and 3:00 pm, so 5 hours.
Therefore, the average speed is
[tex]v= \frac{\Delta S}{\Delta t} =\frac{181~mi}{5~h} = 36.2~mph[/tex]

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