Example 6.10 X Single pendulum is shown in the figure.The length of the pendulum is 21,and the mass of the pendulum is m.The Coefficient of the rotational spring is ke.The pendulum is applied with gravitational force.Find the equilibrium condition g X1Example 6.10 x1 y1 C x y f g kq Single pendulum is shown in the figure. The length of the pendulum is 2l, and the mass of the pendulum is m. The Coefficient of the rotational spring is kq . The pendulum is applied with gravitational force. Find the equilibrium condition