Question

Q4. A mass of 1 slug, when attached to a spring, stretches it 2 feet and then comes to rest in the equilibrium position. Starting att 0, an external force equal to f(t) is applied to the system. Given that the surrounding medium offers a damping force that is numerically equal to 8 times the instantaneous velocity, solve the resulting initial value problem when (a) f(t) 0 (b) s) e sin 4t. Also determine the limit lim r()

Answer 1

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