Physics, 11.12.2019 22:31 1hannacarson
Assume that, when we walk, in addition to a fluctuating vertical force, we exert a periodic lateral force of amplitude 25 n at a frequency of about 1 hz. given that the mass of the bridge is about 2000 kg per linear meter, how many people were walking along the 144-m-long central span of the bridge at one time, when an oscillation amplitude of 75 mm was observed in that section of the bridge?
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Assume that, when we walk, in addition to a fluctuating vertical force, we exert a periodic lateral...
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