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प्रश्न
Tick the most appropriate answer.
A car skids on a wet or muddy road due to
विकल्प
increased friction between the road and the tires.
lubrication of brakes on a wet road.
reduced friction between the road and the tires.
streamlined shape of the car
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उत्तर
reduced friction between the road and the tires.
APPEARS IN
संबंधित प्रश्न
Write true or false.
The sliding friction is more than the rolling friction.
When you apply brakes, the bicycle stops and the rim of the wheel becomes hot? Explain the reason.
Define rolling friction
Fill in the blank.
Weight remaining the same, friction is independent of ............. of surface in contact.
Fill in the blank.
Friction depends upon the ............... of an object.
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.
Answer the following in short.
Define rolling friction and give an example where rolling. friction comes into play.
Match the following.
| Column I | Column II | |
| a) | Static friction | Viscosity |
| b) | Kinetic friction | Least friction |
| c) | Rolling friction | Objects are in motion |
| d) | Friction between the liquid layers | Objects are sliding |
| e) | Sliding friction | Objects are at rest |
Friction depends on the ______ of two surfaces in contact.
Assertion: There is a danger of a vehicle skidding on a wet road.
Reason: The tires of the vehicle lose their grip on the road due to an increase in friction due to the presence of water on the road.
