Question

It takes you 15 minutes to drive 6.0 miles in a straight line to the local hospital. It takes 10 minutes to go the last 3.0 miles, 2.0 minutes to go the last mile, and only 30 seconds (= 0.50 minutes) to go the last 0.50 miles. What is your average velocity for the trip? Take the positive xx direction to be from your starting point toward the hospital.

Answer 1

The overall trip is 15 min for the 6 miles. Plugging that into the equation for Average velocity you get 6m/15min. The answer is asking for m/h. So we know there are 60 minutes in 1 hour. You cross multiply 6m/15min with 60min/1h and get 360m/15h and can reduce it to 24m/h.