Advertisements
Advertisements
प्रश्न
Give two examples to show that greater the mass, greater is the inertia of the body.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Explain why some of the leaves may get detached from a tree if we vigorously shake its branch.
Fill in the following blank with suitable word :
(a) ………………is a measure of the inertia of a body.
Why do the passengers in a bus tend to fall backward when it starts suddenly ?
A water tanker filled up to `2/3` of its tank with water is running at a uniform speed. When the brakes are suddenly applied, the water in its tank would
The inertia of a moving object depends on :
What is meant by the term inertia?
Give one example of each of the following :
(a) inertia of rest, and (b) inertia of motion .
Why does a coin, placed on a card, drop into the tumbler when the card is rapidly flicked with a finger?
The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be ______ kg.
Assertion & Reasoning
- Assertion: The value of ‘g’ decreases as height and depth increase from the surface of the Earth.
- Reason: ‘g’ depends on the mass of the object and the Earth.
