Atorsion spring described below is used in a hand-held spring clamp. the jaws of the clamp are 1.5 inches from the pivot. the spring angle is 45° when the clamp is closed and 0° when the clamp is open. determine torsional spring constant, clamping force when closed and clamping force when open. use units of torque/rev for torsional spring constant. ignore end effects from the spring arms.