A 100 kg machine is mounted on 4 springs of stiffness k each and has negligible damping. The machine is subjected to a harmonic force of F0 = 490 N at 180 rpm. Determine the displacement amplitude and the transmitted force if k = 1.96 × 10⁶ N/m.
A) 0.25 mm, 122.5 N
B) 0.50 mm, 245 N
C) 0.75 mm, 367.5 N
D) 1.00 mm, 490 N
