A body at rest continues to be at rest underless some external force force is applied to move it. Rather, the body at rest opposes the force that tends to move it. Left to itself, the body at rest, will never start moving. This is well known property of inertia of rest of bodies, we study in Physics. ltRead carefully the above passage and answer the following questions:
(i) When a bus start moving suddenly, the passengers tend to fall backward. Why?
(ii) Give one more example of inertia of rest.
(iii) What values do you inculcate in life from this study?

Explanation

(i) The passenger tend to fall backward, because of the property of inertia of rest. The lower part of the body in contact with the seat moves with the bus. The upper part of the body tends to remain at rest. That is why the passenger tend to fall backwards.
When a branch of tree laden with mangoes is shaken vigorously, some of the mangoes fall down. This is due to inertia of rest of the mangoes.
(iii) In a day to day life, we find that the law of inertia is applicable universally. For example, if I have some bad habit, it will not go on its own. I have to put in efforts to change the same. To start with, I will rather resist myself to adopt the change. Some sort of force in the form of motivation(internal or external) is essentially required to affect the change. The same is true for parents and teachers handling young kids.