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प्रश्न
What are the types of inertia? Give an example for each type.
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उत्तर
- Inertia of rest: The resistance of a body to change its state of rest is called inertia of rest. Eg: When you vigorously shake the branches of a tree, some of the leaves and fruits are detached, and they fall down.
- Inertia of motion: The resistance of a body to change its state of motion is called inertia of motion. Eg: An athlete runs some distance before jumping. Because this will help him jump longer and higher.
- Inertia of direction: The resistance of a body to change its direction of motion is called inertia of direction. Eg: When you make a sharp turn while driving a car, you tend to lean sideways.
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संबंधित प्रश्न
Which of the following has more inertia:
- a rubber ball and a stone of the same size?
- a bicycle and a train?
- a five-rupees coin and a one-rupee coin?
Explain why some of the leaves may get detached from a tree if we vigorously shake its branch.
Why is it advised to tie any luggage kept on the roof of a bus with a rope?
Name the property of bodies (or objects) to resist a change in their state of rest or of motion.
On what factor does the inertia of a body depend ? Which has more inertia, a cricket ball or a rubber ball of the same size ?
Why does a person fall when he jumps out from a moving train ?
Explain the following :
When a train suddenly moves forward , the passenger standing in the compartment tends to fall backwards .
Explain the following:
Why does dust fly off, when a carpet is hit with a stick?
Inertia of a body depends on
Two blocks of masses 8 kg and 2 kg respectively lie on a smooth horizontal surface in contact with one other. They are pushed by a horizontally applied force of 15 N. Calculate the force exerted on the 2 kg mass.
