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1.   A 4 pound weight stretches a spring 6 inches. The mass is then released from...

1.   A 4 pound weight stretches a spring 6 inches. The mass is then released from an initial position of 4 feet below the equilibrium position with an initial upward velocity of 24ft/s.   


(a)   What is the frequency of motion?
(b)   Determine the first time the mass crosses the equilibrium position. Round to 3 decimals places.
(c)   Determine the first time the mass attains its extreme displacement from the equilibrium position. Round to 3 decimal places.

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Answer #1

(a) Frequency = 1.28Hz

(b) time = 0.116 sec

(c) time = 0.703 sec

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