Consider the system shown in the figure below. Assume that the massless rigid bars AB and AC are in horizontal and vertical positions respectively when the system is in static equilibrium. The vector g shows the direction of gravitational acceleration (assumeg = 9.81 m/s2). Assuming m = 4 kg, a = 4 m, for the system to vibrate without instability, the stiffness k should be greater than: m a a a 2 19.62 N/m 0.00 N/m 39.24 N/m 29.43 N/m 9.81 N/m O 00 0O

Consider the system shown in the figure below. Assume that the massless rigid bars AB and AC are in horizontal and vertical positions respectively when the system is in static equilibrium. The vector g shows the direction of gravitational acceleration (assumeg = 9.81 m/s2). Assuming m = 4 kg, a = 4 m, for the system to vibrate without instability, the stiffness k should be greater than: m a a a 2 19.62 N/m 0.00 N/m 39.24 N/m 29.43 N/m 9.81 N/m O 00 0O

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter10: Virtual Work And Potential Energy

Section: Chapter Questions

Problem 10.57P: Find the stable equilibrium position of the system described in Prob. 10.56 if m = 2.06 kg.

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