A runner wants to run 10.0 km. She knows that her running pace is 7.5 mi/h. How many minutes must she run? Hint: Use 7.5 mi/h as a conversion factor between distance and time.

Problem 83P

A runner wants to run 10.0 km. She knows that her running pace is 7.5 mi/h. How many minutes must she run? Hint: Use 7.5 mi/h as a conversion factor between distance and time.

Solution: Here, we are going to calculate the time required by the runner to run 10.0 Km.

Step1:

Distance to be travelled by the runner = 10. 0 Km

Speed of the runner = 7.5 mi/h

Conversion of Mile(mi) to Kilometer(Km):

1 mile = 1.61 Km

Therefore, 7.5 mile...