A mass weighing 3 lb stretches a spring 3 in. If the mass is pushed upward
Chapter 3, Problem 7(choose chapter or problem)
A mass weighing 3 lb stretches a spring 3 in. If the mass is pushed upward, contractingthe spring a distance of 1 in, and then set in motion with a downward velocity of 2 ft/s,and if there is no damping, find the position u of the mass at any time t. Determine thefrequency, period, amplitude, and phase of the motion.
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