Mathematics, 03.12.2019 23:31, dprajapati832000

Amass that weighs 8 lb stretches a spring 24 in. the system is acted on by an external force of 4sin(4t). if the mass is pulled down 6 in and then released, determine the position of the mass at any time t. assume that the u-axis is directed downwards and g=32 ft/s^2. express your answer in as a linear combination of sin(at)and cos(at).

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Amass that weighs 8 lb stretches a spring 24 in. the system is acted on by an external force of 4sin...