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प्रश्न
Define rolling friction
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उत्तर
The minimum force required to roll a body on a surface is called the force of rolling friction.
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संबंधित प्रश्न
List three ways of reducing friction.
Define static friction
Arrange the following in descending order:
- static friction
- sliding friction and
- rolling friction?
Answer the following in a word or two or in a sentence.
Which type of force acts on a string pulled from both ends?
Fill in the blank.
Weight remaining the same, friction is independent of ............. of surface in contact.
Tick the most appropriate answer.
Friction produces
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.
Complete the analogy.
Knot in a thread : _____ friction : : Ball bearing : _____ friction
In the following figure, a boy is shown pushing the box from right to left. The force of friction will act on the box
Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
