Problem 2: SDOF with Varving Stiffness Contributions Derive the cquation of motion for cach of the three mass-spring systems in Figure P2.1-3 using (a) Dynamic Equilibrium (b) Lagrange's Equations o u(t) p(t) ellle elle k, k Figure P2.1 Page 1 of 2 CIVE 842 HW 2 Fall 2020 o u(t) ►P(t) elle elle m rellle k, Figure P22 o u(t) elle m p(t) elle el k k, Figure P23

Problem 2: SDOF with Varving Stiffness Contributions Derive the cquation of motion for cach of the three mass-spring systems in Figure P2.1-3 using (a) Dynamic Equilibrium (b) Lagrange's Equations o u(t) p(t) ellle elle k, k Figure P2.1 Page 1 of 2 CIVE 842 HW 2 Fall 2020 o u(t) ►P(t) elle elle m rellle k, Figure P22 o u(t) elle m p(t) elle el k k, Figure P23

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