Inertia Definition

 In this blog we are going to learn about how to define inertia.

I don't know much about inertia definition ,but i believe that this discussion will help you to know inertia definition better.

And one more thing if  you understood this concept than it will help you to more inertia ralated concept like moment of inertia cylinder,moment of inertia rectangle etc.but first of all we should learn understood this difinition.

There is a glass tumbler placed on a table over which is placed a card board

Now place a coin on the card board

The tumbler, the card board and the coin are all at rest

Now flick the card board. What do you observe?

You will notice that the coin falls vertically downwards

Observe that the coin does not move with the cardboard

However the coin falls downwards due to force of gravity

The coin does not move with the card board because of the property of matter called inertia

Inertia is the inability of a body to change by itself either the state of rest or of uniform motion along a straight line unless an external force is applied on it

Now let us understand inertia with the help of another example.

Here you can see the passengers in the bus leaning backward when the bus suddenly starts moving.

Why does this happen?

This is because the upper part of the body of the passengers continues to be at rest while the lower part starts moving along with the bus due to inertia

Similarly when a moving bus stops suddenly, the passengers will fall forward.