Hi, I'm new here. I've something in mind for sometime now, that is what happen if a car has its front and rear wheels turning at different speed? Say, the front wheels can cover 100km/hr while the rear ones can only cover 75km/hr. What happen to the car average speed (I guess its less than 100km/hr)? How is that so? Also, I wonder if this problem is relevant to kicking vs "crawling" speed in front crawl (freestyle) swimming? I've just started swimming recently maybe I could get some good tips here hehe Thanks for your help.