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 5.15 x 105 N/m, the helper spring constant is 3.80 x 105 N/m, and y₁ = 0.500 m. m Need Help? Truck body Main leaf spring (a) What is the compression of the leaf spring for a load of 4.90 × 10³ N? X Read It -"Helper" spring Axle (b) How much work is done in compressing the springs?

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 5.15 x 105 N/m, the helper spring constant is 3.80 x 105 N/m, and y₁ = 0.500 m. m Need Help? Truck body Main leaf spring (a) What is the compression of the leaf spring for a load of 4.90 × 10³ N? X Read It -"Helper" spring Axle (b) How much work is done in compressing the springs?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest. 

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 yo, the helper spring engages
and then helps to support any additional load. Suppose the leaf spring constant is 5.15 x 105 N/m, the helper spring constant is
3.80 x 105 N/m, and y₁ = 0.500 m.
m
Need Help?
Truck body
Main leaf
spring
(a) What is the compression of the leaf spring for a load of 4.90 x 105 N?
Read It
-"Helper"
spring
Axle
(b) How much work is done in compressing the springs?

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