A mass and a spring system is subjected to an external harmonic excitation of 400cos30t (N). Find the response for the following givens: K =4000 N/m. m 10 kg, xo = 0.1 m and vo = 0m/s Select one: O...

URGENT sir

Extracted text: A mass and a spring system is subjected to an external harmonic excitation of 400cos30t (N). Find the response for the following givens: K =4000 N/m. m 10 kg, xo = 0.1 m and vo = 0m/s Select one: O 0.1cos20t - tsin20.1t O 0.lcos10t + tsin20.1t O 0.18cos30t -0.08cos30t O 0.18cos20t -0.08cos30t