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प्रश्न
State if the following statement is true or false. Correct the statement if it is false.
Friction has no relation with our walking or running.
पर्याय
True
False
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उत्तर
False.
Friction helps us with our walking or running.
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संबंधित प्रश्न
Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.
Give an example to illustrate the existence of the force of friction.
Answer the following.
What do you understand by a force?
Fill in the blank.
Weight remaining the same, friction is independent of ............. of surface in contact.
Tick the most appropriate answer.
Friction produces
Answer the following in detail.
Define friction and explain how it is useful to us.
Why is a ball bearing used in a cycle hub?
Is there any possibility of making a special device to measure the magnitude of friction directly?
In the following figure, a boy is shown pushing the box from right to left. The force of friction will act on the box
Assertion: We can live very happily if friction is not present in nature.
Reason: The airplane shape is streamlined to reduce the effort of frictional force.
