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प्रश्न
Give two examples to show that greater the mass, greater is the inertia of the body.
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उत्तर
Examples to show that greater the mass, greater is the inertia of the body are as shown below:
(i) If you want to start a car by pushing it, you find that it takes a very large force to overcome its inertia. On the other hand, only a small force is needed to start a child's express wagon. The difference between the car and express wagon is the difference in mass. The car has a large mass, whereas the wagon has a small one.
(ii) A cricket ball is more massive than a tennis ball. The cricket ball acquires a much smaller velocity than a tennis ball when the two balls are pushed with equal force for the same time.
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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?
Fill in the following blank with suitable word :
(a) ………………is a measure of the inertia of a body.
A body of mass 25 kg has a momentum of 125 kg.m/s. Calculate the velocity of the body.
The physical quantity which makes it easier to accelerate a small car than a large car is measured in the unit of :
Name the factor on which the inertia of a body depends and state how does it depend on the factor stated by you .
Give two examples of inertia kinds.
Explain the following:
Why do fruits fall off the branches in the strong wind?
Explain the following:
Why is it difficult to walk on marshy ground?
Passengers lean forward when a sudden brake is applied in a moving vehicle. This can be explained by ________.
What are the types of inertia? Give an example for each type.
