Some climbing ropes are designed to noticeably stretch under a load to lessen the forces in a fall. A weight is attached to 10 m length of climbing rope, which then stretches by 20 cm. Now, this single rope is replaced by a doubled rope—two pieces of rope next to each other. How much does the doubled rope stretch?A. 5.0 cmB. 10 cmC. 20 cmD. 40 cm

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A: Maximum normal stress = 235.98 lb/in2 = 236 psi Detailed solution is given below: Please UPVOTE sir

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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).