An 9.13-kg stone at the end of a steel (Young's modulus 2.0 x 1011 N/m2) wire is being whirled in a circle at a constant tangential speed of 16.6 m/s. The stone is moving on the surface of a frictionless horizontal table. The wire is 4.39 m long and has a radius of 4.31 x 103 m. Find the strain in the wire. Number i Units eTextbook nd M-

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A: AX=Acos45AX=102AX=7.071 m (towards left)   Also, AY=Asin45AY=102AY=7.071 m (Upward)

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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).