Structure and function of the dermis in general Structure; deep part of skin; connective tissue composed of two layers function; is responsible for the structural strength and flexibility of the skin; the epidermis exchanges gases nutrients and waste products with blood vessels in the dermis
My new answer: Usain Bolt acheived a top speed of 27.28 mph or 43.90 kph in travellng the 2 fastest consecutive 60-70 & 70-80, 10m splits ever of .82 seconds. We'll leave out 4x100m splits as I don't have them for Team Jamaica's WR from Beijing.
The average human walking speed is in the neighborhood of 3 mph (4.8 km/h). How fast do you think you could run at a full sprint? 10 mph? 15 mph?elow, I have taken several men's and women's world records and calculated the runners' average speed. Usain Bolt has averaged over 23 miles per hour in both the 100 and 200 meter events. It's interesting to note that the 60 meter race has a slower average speed for both men and women than the 100 meter race.