Question: A uniform beam is suspended horizontally by two identical vertical springs that are attached between the ceiling and each end of the beam. The beam

A uniform beam is suspended horizontally by two identical vertical springs that are attached between the ceiling and each end of the beam. The beam has mass 225 kg, and a 175-kg sack of gravel sits on the middle of it. The beam is oscillating in SHM, with amplitude of 40.0 cm and a frequency of 0.600 cycles/so
(a) The sack of gravel falls off the beam when the beam has its maximum upward displacement what are the frequency and amplitude of the subsequent SHM of the beam?
(b) If the gravel instead falls off when the beam has its maximum speed, what are the frequency and amplitude of the subsequent SHM of the beam?

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IDENTIFY Use energy considerations to find the new amplitude SET UP f0600 Hz m400 kg f gives k5685 Nm This is the effective force constant of the two ... View full answer

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