Extracted text: 120 N/m and Given that: m, = 8 kg. , m2 = 3 kg., k, = 150 N/m, k2 k3 = 50 N/m. • Determine the natural frequencies of the system. • Find positions of the m, and m, at t=3 sec., if their initial positions are set to 5 cm and 2 cm respectively, and they are suddenly released at that positions. k2 m2 m1 k, k,