If an undamped springmass system with a mass that weighs 6
Chapter 3, Problem 9(choose chapter or problem)
If an undamped springmass system with a mass that weighs 6 lb and a spring constant 1 lb/in is suddenly set in motion at t = 0 by an external force of 4 cos 7t lb, determine the position of the mass at any time, and draw a graph of the displacement versus t.
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