Question

Max completed a 10 mile run 1 hour 20 minutes. Which dimensional analysis would you use to find her average speed in miles per hour?

Answer 1

To find the average speed in miles per hour, we need to convert the time from 1 hour 20 minutes to hours.

1 hour 20 minutes can be written as 1.33 hours (since there are 60 minutes in an hour, and 20 minutes is 20/60 = 0.33 hours).

Now we can use dimensional analysis:

10 miles / 1.33 hours = (10 miles) / (1.33 hours) = 7.52 miles/hour

So the average speed is 7.52 miles per hour.