In the following problems, take g = 32 ft/sec2 for the
Chapter 4, Problem 15E(choose chapter or problem)
PROBLEM 15E
In the following problems, take g = 32 ft/sec2 for the U.S. Customary System and g = 9.8 m/sec2 for the MKS system.
An 8-kg mass is attached to a spring hanging from the ceiling and allowed to come to rest. Assume that the spring constant is 40 N/m and the damping constant is 3 N-sec/m. At time t = 0, an external force of 2 sin 2t cos 2t N is applied to the system. Determine the amplitude and frequency of the steady-state solution.
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