ocr: Is friction always a nuisance? FRICTION Friction can sometimes be very useful. Without friction between the tires and the ground, bicycle wheels would simply spin around in the same spot. The grip provided by frictional forces also let you corner without skidding. The triction between the soles ofy your shoes and the floor stops you from slipping. Soles are usually made from rubber or leather - materials that make a lot of friction. Matches need friction to burst into flame. As a match scrapes along the back of a matchbook, the friction between the wo rough objects generates enough heat to set ...
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