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 vf2 = (vi)2 + 2as x = (vi)t + 1/2 at2 average velocity = (vf + vi)/2

One dimensional motionBy 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

vf2 = (vi)2 + 2as

x = (vi)t + 1/2 at2

average velocity = (vf + vi)/2