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 y0, the helper spring engages and then helps to support any additional load. Suppose the leaf spring constant is 4.90  105 N/m, the helper spring constant is 3.60  105 N/m, and y0 = 0.500 m. Just need b answered (a) What is the compression of the leaf spring for a load of 4.30  105 N?   0.7176 m (b) How much work is done in compressing the springs

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.