Calculate the horizontal distance a in Figure Q3b Calculate the reaction forces RA and RC that support the structure at nodes A and C. Calculate the force FCD in the member CD between node joints C and D Calculate the force FBC in the member BC between node joints B and C Calculate the force FAE in the member AE between node joints A and E Calculate the force FAB in the member AB located between node joints A and B.

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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).