Define the term inertia, what are the different types of inertia?
Inertia of a body is the natural tendency of a body to resist any change in its state of rest or of uniform motion along a straight line.
For example, a book lying on a table will continue to remain there until an external force is applied on it to remove or displace it from that position.
There are three types of inertia, namely:
(i) inertia of rest,
(ii) inertia of motion and
(iii) inertia of direction.