My railroad teacher showed us his video, how rail tracks are replaced. There was this crane, which was on placing the tracks and after it lifted the track, it started wobbling and it looked so soft, but they are made of some kind of steel. How is this possible?
In: Physics
Stiffness of an object is the function of the thickness and length in the direction of loading. A rail is quite shallow given its length which makes it flop. Thick and short equal stiff (no flop); thin and log equal flexible (flop).
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