ONE+DIMENSIONAL+MOTION


 * One dimensional motion**

By one dimension we mean that the body is moving only in one plane and in a straight line. Like if we roll a marble on a flat table, and if we roll it in a straight line (not easy!), then it would be undergoing one-dimensional motion.  There are four variables which put together in an equation can describe this motion. These are Initial Velocity ( **vi** ); Final Velocity ( **vf** ), Acceleration ( **a** ), Distance Traveled ( **s** ) and Time elapsed ( **t** ). The equations which tell us the relationship between these variables are as given below. vf = vi + at vf 2 = (vi) 2 + 2as x = (vi)t + 1/2 at 2 average velocity = (vf + vi)/2