system is When a two-degree-of-freedom subjected to a harmonic force, the system vibrates at the O Smaller natural frequency O Frequency of applied force O Natural frequency O Larger natural frequency

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6.66 Determine values of k and C such that the steady-state amplitude of the center of the cylinder in Figure P6.66 is less than 4 mm for 60 rad/s 110 rad/s? 킄 5 x 105 N/m ww FIGURE P6.66 40 cm G. 200 sinat Massless pulley 20 cm 40 cm MO 8 kg

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cquar? 2.55. Determine the differential equation of motion and establish the critical damping for the system shown in Fig. P2.55. FIGURE P2.55. m₂ To

Question 9: Determine the natural frequency of the spring-mass system (Fig.Q9) in both rad/sec and cycles/sec (Hz). k = 120 N/m 20 kg

A vibratory system consists of a spring of stiffness 5 N/mm and a mass of 10 kg. Mass of spring is 3 kg. The natural frequency of the system in rad/sec is

A compact object with a mass of 8.80 kg oscillates at the end of a vertical spring with a spring constant of 1.60 ✕ 104 N/m. The motion is damped by air resistance, and the damping coefficient is b = 3.00 N · s/m. (a) What is the frequency (in Hz) of the damped oscillation?   Hz (b) By what percentage does the amplitude of the oscillation decrease in each cycle?  % (c) Over what time interval (in s) does the energy of the system drop to 5.00% of its initial value?  s (d) What If? The atmosphere of Venus is 50 times thicker than that on Earth. If the effect of air resistance on Venus is represented by b = 150 N · s/m, recalculate the answers for parts (a) to (c) for this system if it is set in motion in the atmosphere of Venus. What is the frequency (in Hz) of the damped oscillations?  Hz What is the percentage decrease in amplitude in each cycle?  % What is the time interval (in s) for the energy to drop to 5.00% of its initial value?  s