5. Two steel wires P and Q have lengths 1 and 21 respectively, and cross-sectional areas A and A/2 respectively. Both wires obey Hooke's law. What is the ratio of tension in P tension in Q when both wires are stretched to the same extension?

5. Two steel wires P and Q have lengths 1 and 21 respectively, and cross-sectional areas A and A/2 respectively. Both wires obey Hooke's law. What is the ratio of tension in P tension in Q when both wires are stretched to the same extension?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 50PQ

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Concept explainers

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).

Question

5. Two steel wires P and Q have lengths 1 and 21
respectively, and cross-sectional areas A and A/2
respectively. Both wires obey Hooke's law. What is
the ratio of
tension in P
tension in Q
when both wires are stretched to the same
extension?

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