So since I've participated in a sport of running called Cross Country, I think I might talk about the physics I'm doing everyday. Let me "run" you through the basics one "step" at a time! I need to stop hanging out with Briana. So anyways, everyone hates running, but why? Well, because everytime you step, you exert a big force to the ground and the ground pushes back with an equal and opposite force (Newton's 3rd Law). This pounding on your legs, mainly knees and calves, causes pain in the areas that get the biggest force. Also, you may not believe it or feel it, but air resistance or drag force plays a major role in how fast you may run. So as you know, drag force = -bv, meaning that as you increase your speed, you increase the amount of air resistance acting on you. If you want to increase your speed by 2 miles, you have to work twice as hard to beat drag force. So that's all on running for today. Tune in next time where we hit more everyday physics.
