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1. an L-shape massless rigid member with a mass m at the tip and supported by a spring of stiffness k is hinged at

1. an L-shape massless rigid member with a mass m at the tip and supported by a spring of stiffness k is hinged at O, as shown. It is needed to: a) Derive the equation of vibration e. b) Determine equilibrium angle 0e. c) Determine the height H for which the system becomes unstable. (1pt) m L 2 ww k L 2 T H

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