Answer Happy

Please solve using virtual work.
1 6/156 The sliding block is given a horizontal acceleration to the right that is slowly increased to a steady value a. The attached pendulum of mass m and mass center G assumes a steady angular deflec- tion 0. The torsion spring at O exerts a moment M = k0 on the pendulum to oppose the angular deflection. Determine the torsional stiffness kr that will allow a steady deflection 0. kT 300 mm Problem 6/156