Answered: Truck body tyo -"Helper" spring Main…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter13: Gravitation

Section: Chapter Questions

Problem 65AP: A body of mass 100 kg is weighed at the North Pole and at the equator with a spring scale. What is...

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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 Figure P5.26.
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 5.25 x 10⁵ N/m, the
helper spring constant is 3.60 x 10⁵ N/m, and y₀ = 0.500 m.

(a) What is the compression of the leaf spring for a load of
5.00 x 10⁵ N? (b) How much work is done in compressing
the springs?

Truck body
tyo
-"Helper"
spring
Main leaf
spring
Axle
Figure P5.26

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