After a fall, a 89 kg rock climber finds himself dangling from the end of a rope that had been 15 m long and 8.7 mm in diameter but has stretched by 2.4 cm. For the rope, calculate (a) the strain, (b) the stress, and (c) the Young's modulus. (a) Number i (b) Number (c) Number i Units Units Units

After a fall, a 89 kg rock climber finds himself dangling from the end of a rope that had been 15 m long and 8.7 mm in diameter but has stretched by 2.4 cm. For the rope, calculate (a) the strain, (b) the stress, and (c) the Young's modulus. (a) Number i (b) Number (c) Number i Units Units Units

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 68P: An aluminium (=2.7g/cm3) wire is suspended from the ceiling and hangs vertically. How long must the...

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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

After a fall, a 89 kg rock climber finds himself dangling from the end of a rope that had been 15 m long and 8.7 mm in diameter but has
stretched by 2.4 cm. For the rope, calculate (a) the strain, (b) the stress, and (c) the Young's modulus.
(a) Number i
(b) Number i
(c) Number i
Units
Units
Units

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