ز Prob. 2. A mass-spring system can be expressed by the following equation mx"(+) + cxt) + kx(4) r(t) Given m= 2 kg c =

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ز Prob. 2. A mass-spring system can be expressed by the following equation mx"(+) + cxt) + kx(4) r(t) Given m= 2 kg c = 6kg/ sec k = 18 kg/sec? 7 sin (wt). a) : Solve for X(t) b): Determine w such that the steady-static vibration of maximum possible amplitude is achieved Prob. 3: Find a general solutim solutim of the filloning ODE'S Frobenius method using the O a) : xy + 2x²y + (x² = 2) j : 6) xy + bxsh it (4x²+6) j = 0