u' webasslgnmet .-; " that engage at high loads. One such arrangement is a leaf spring with a helper Truck suspensions often have "helper springs leaf spring is compressed by distance ya, the coil spring mounted on the axle, as shown In the gure below. When the main al load. Suppose the leaf spring constant is 5.40 x 105 N/m, the helper spring engages and then helps to support any addition helper spring constant is'3.70 x 105 N/m, and y0 = 0.500 m. ! ~ 63 (a) What is the compression of the leaf spring for a load of 4.90% 105 N? S m (b) How much work is done in compressing the springs? E3