The wing of a jet is modeled as a two dimensional structure that is supported by a pin and torsional spring at point A. The distributed load on the bottom of the wing is due to the lift forces , and the 5kn, 3kn, and 4kn forces are due to the weights of the fuel, engine, and wing respectivly. When there are no forces applied to the wing, the wing is horizontal and the torsional spring produces no moment. Due to the forces shown, the tip of the wing, point E, deflects upward by 8cm. Assuming the wing is rigid determine the stiffness kt of the torsional spring. Reort your answer using degrees.