You have trained all year for a marathon and your first attempt to run a marathon you decide that you want to complete this 26.2 mile race in 4.5 hours what is the length of a marathon in kilometers and what would your average speed have to be to complete the race in 4.5 hours?

Answer 1

A marathon is 26.2 miles in length. To convert this to kilometers, we can use the conversion factor 1 mile = 1.609 kilometers.

So, the length of a marathon in kilometers is 26.2 miles * 1.609 kilometers/mile = 42.195 kilometers.

To calculate the average speed you need to maintain to complete the race in 4.5 hours, we can use the formula: Average speed = distance ÷ time.

So, the average speed to complete the marathon in 4.5 hours is 42.195 kilometers ÷ 4.5 hours = 9.376 kilometers/hour.