sa Problema 1 A boy riding a bicycle can be modeled as a mass-spring-shock absorber system. The weight of the child is 80N, the constant of elasticity of the spring is 5000 N/m, and the damping constant is 1000 Ns/m. During the course of the route there is a difference in level as can be seen in the image. If the velocity of the bicycle is 5 m/s, determine the boy's displacement in the vertical direction. Assume that the bicycle is free from vertical vibration before finding the step change in vertical displacement Meq 10 m 1-0 -5 cm 1=3s B 15 m -10 m