A suspension bridge is to be built across valley where it is known that the wind can gust at 5 s intervals is estimated that the

Question

A suspension bridge is to be built across valley where it is known that the wind can gust at 5 s intervals is estimated that the speed of transverse waves along the span of the bridge would be 400 m s The dange of resonant motions in the bridge at its fundamental frequency would be greater if the span had a length of 1 2000 m 2 1000 m 2 3 400 m 4 80 m

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