Question: Problem 3 ( 2 0 points ) A spring - mass system with m = 1 0 0 k g , k = 4 0

Problem 3(20 points) A spring-mass system with m=100kg,k=400Nm, and damping ratio =0.05
is subjected to a harmonic force excitation of F(t)=100cos(t)N. Both initial displacement (x0) and
initial velocity (x0) are zero. Please find the total response (i.e,(:x(t)=xh(t)+xh(t)
Problem 3 ( 2 0 points ) A spring - mass system

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