Solved: A mass weighing 8 pounds is attached to a spring. When set in motion, the

Chapter 3, Problem 9

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A mass weighing 8 pounds is attached to a spring. When set in motion, the spring/mass system exhibits simple harmonic motion. (a) Determine the equation of motion if the spring constant is 1 lb/ft and the mass is initially released from a point 6 inches below the equilibrium position with a downward velocity of ft/s. (b) Express the equation of motion in the form of a shifted sine function given in (6). (c) Express the equation of motion in the form of a shifted cosine function given in (6').

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