Question

Truck suspensions often have "helper springs" that engage at high loads. One such arrangement is a leaf spring with a helper coil spring mounted on the axle, as shown in the figure below. When the main leaf spring is compressed by distance y, the helper spring engages and then helps to support any additional load. Suppose the leaf spring constant is 4.80 x 105 N/m, the helper spring constant is 3.70 x 103 N/m, and yo 0.500 m. Truck body "Helper spring Main leaf spring Axle (a) What is the compression of the leaf spring for a load of 4.40 x 105 N? m (b) How much work is done in compressing the springs?

Answer 1

lo ad k x hoxl o 4.40 Y|o Compres si on K = 0.92 meteg dnw ex Compressing Spaings is sto sed Work done in to wrag elastic Potential in tha ener y 2 =00.5 3.7x .2) 2 a03136 46250 t 20313 Answer 249386 JS