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प्रश्न
Write true or false.
The sliding friction is more than the rolling friction.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
Select the correct alternative.
Friction is reduced by
When you apply brakes, the bicycle stops and the rim of the wheel becomes hot? Explain the reason.
A body needs a force F1 just to start moving on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is
- the static friction
- sliding friction and
- rolling friction? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.
Answer the following.
What do you understand by a force?
Fill in the blank.
.................... is the SI unit of force.
Tick the most appropriate answer.
Friction is offered by
Tick the most appropriate answer.
A car skids on a wet or muddy road due to
Tick the most appropriate answer.
If you pour some oil onto a floor, the friction would
Answer the following in detail.
Write the characteristics of the force of friction?
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.
