Mountain Biking has an endless list of things that are physics, from the static friction of rolling tire to kinetic friction of a tire skidding to the force applied by your feet on the pedals or the force applied by your fingers on the brake levers. I bike a lot in summer and even sometimes in the winter, but the best story I have of biking pertaining to physics took place on a rainy summer day. My friend and I were biking and we got to a board walk and both had the same idea, that wet board wal
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