A bridge is 36.0 m. long and it weighs 2.50 x 10^5N. a truck weighing 5.20 x 10^4 N is 10m. from one end of the bridge .calculate the force that must be exerted by each pier to support these weighs

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A: Radius of earth,r=6.380×106 mT=24 hours=24×3600 secondsg=9.8 m/s2

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).