Young's modulus for compression of human bone is approximately 9x10⁹ N/m^2. Assume that a femur has length L. Under compression it can withstand a stress (= force/area) equal to 8. By what length would the femur compress for this stress? L = 52.80 cm; S = 7.500x107 N/m^2; (in m) A: 9.227x10-4 B: 1.153x10-3 OC: 1.442x10-3 OD: 1.802x10-3 OE: 2.253x10-3 OF: 2.816x10-3 OG: 3.520x10-3 OH: 4.400x10-3

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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).