(1) Uniform linear motion :
When the distance traversed by an object along a straight line in unit time is the same, the motion is called as uniform linear motion,
e.g. Motion of soldiers on parade.
(2) Non-uniform linear motion :
When the distance traversed by an object along a straight line in unit time keeps on changing, the motion is called non-uniform linear motion.
e.g. A girl coming down a slide.
(3) Non-linear motion :
The motion of an object that does not move in a straight line is called non-linear motion.
e.g. Motion of a swing,
(4) Speed :
The distance traversed by an object in unit time is called the speed of that object.
e.g. A boy riding on a bicycle covers a distance of 15 kilometres in 3 hours.
Hence,
Speed = \(\frac{15}{3}\)
= 5 kilometres/hour
