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An undamped spring-mass system contains a mass that weighs 4lb and a spring with spring constant 6lb/in. It is suddenly set in motion at t=0 by an external force of 8cos(2t)lbā”. Determine the position u of the mass at any time t. Use 32ft/s2 as the acceleration due to gravity. Pay close attention to the units.
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An undamped spring-mass system contains a mass that weighs 4lb and a spring with spring constant 6lb...
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