A mass and a spring system is subjected to an external harmonic excitation of 400cos20.1t (N). Find the response for the following givens: K =4000 N/m. m = 10 kg, Xo = 0.1 m and vo = 10 m/s Select...

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Extracted text: A mass and a spring system is subjected to an external harmonic excitation of 400cos20.1t (N). Find the response for the following givens: K =4000 N/m. m = 10 kg, Xo = 0.1 m and vo = 10 m/s Select one: 10.07506cos20t + 0.5sin20t – 9.97506cos20.1t O 10.07506cos20t + 0.5sin20.1t - 9.97506cos20.1t O 0.1cos20t - tsin20.1t O 0.1cos10t +tsin20.1t