Question 614617
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A car travels at a constant speed of 15m/s. How many miles does the car travel in 15 sec
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        The other tutor misread the problem.

        I came to bring a correct solution.



<pre>
Dimension of speed  ' m/s ' means, by default, 'meters per second'.
It can not have any other meaning, by the common agreement.


So, the car has a constant speed of 15 meters per second.
In 15 seconds, the car moves 15*15 = 225 meters.


We should convert 225 meters to miles.
1 mile = 1609.34 meters


So, to make this conversion, we should divide 225 meters by 1609.34 meters per mile.


The division gives  225 meters = {{{225/1609.34}}} = 0.1398  of a mile .   <<<---===<U>ANSWER</U>
</pre>

Solved.