Question

The main springs in a car form part of the suspension system and affect both the driver's control of the car and the comfort of the occupants. The coil spring is simply a spiral of resilient steel rod. It is stretched or compressed by the vertical movement of the wheels of the car. Assume that the spring obeys Hooke's Law and has a stiffness, k = 18 kN/m, and is elongated by 5.89 cm from equilibrium. The work required to do this is? Select one: O A.-53.01J OB. 106.02 J OC.-31.22 J O D. 624.46 J

Answer 1

- W = - 놀K W = -1/2 x 18 x 18 x (010589) - 3) 2 J