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EQUATIONS OF MOTION         Suppose an object is moving with uniform acceleration a along a straight line. If its initial velocity is v i and final velocity after a time interval t is v f  . Let the distance covered during this interval be S then we have            1)  2)  3)  4)      

Displacement: Shortest distance between two points is called displacement                                                                OR The displacement is a change in the position of body form its initial position to final position Unit:  SI unit of displacement is metre (m)                    Dimension:             The dimension of displacement is [L] VELOCITY: The time rate of change of displacement is known as velocity. It is a vector quantity. Its direction is along the direction of displacement. Mathematically...