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Problem 1: The system in Figure 1 comprises two masses connected to one another through a spring. The block slides without friction on the support and has mass mi. The disk has radius a, mass moment of inertia I, and mass m2. The disk rolls without slipping on the support. The springs are unstretched when x(t) = x2(t) = 0. 2k 3k , m Figure 1: System for Problem 1 (a) Derive the differential equations of motion for the system (b) Letma2. Write the equations of motion as a matrix equation. (c) Are the mass and stiffiness matrices in part (b) positive definite? Prove your answer matrices in part (b) positive definite? Prove your answer

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* FBD: an motion foy -tu system maps 2) Eqtecution Equation CT&in matnx feom 3 SK -3k 3k 3 k

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