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| Uniform Motion - Introduction |
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| Mechanics, the oldest physical science, is the study of motion of objects. It is applied in calculation of the path of an artillery shell, a space probe sent from earth to Mars, etc. |
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| Everything in the universe is in motion, from the tiny electrons to the giant galaxies. The study of motion can be broadly classified into two categories. |
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| It deals with the path of a moving body. This branch is only concerned with describing motion (with the help of mathematics) and not with the cause of motion. |
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| This is derived from the Greek word 'dynamis', meaning power. Dynamics involves the study of the cause of motion, which is force. When we relate motion of an object to the forces associated with it and to the properties of the moving objects, we are dealing with dynamics. |
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| In this chapter, however, we shall define some kinematical quantities and study them for the case of motion in one, two and briefly in three dimensions. |
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| Statics is the branch of mechanics that deals with the study of motion of objects under the effect of forces in equilibrium. |
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