How fast is one mile in ten seconds?

To calculate the speed of one mile in ten seconds, we need to convert the time to hours. There are 3,600 seconds in an hour, so 10 seconds is equivalent to 10/3,600 hours. To find the speed, we divide the distance (1 mile) by the time (10/3,600 hours), which equals 360 miles per hour. Therefore, one mile in ten seconds is equivalent to a speed of 360 miles per hour.