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प्रश्न
Select the correct alternative.
Friction is increased if
पर्याय
an oil is sprayed
the surfaces are made wet
the surfaces are made dry
the surfaces are polished
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उत्तर
the surfaces are made dry
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संबंधित प्रश्न
To draw water from a well we have to ______ at the rope.
Fill in the blank.
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| Column A | Column B |
| a) Non contact force | 1) repel |
| b) Like poles | 2) kg |
| c) Contact force | 3) gravitational force |
| d) Mass | 4) wear and tear |
| e) Weight | 5) force of friction |
| f) Friction | 6) kgf |
Select the correct alternative.
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Explain the meaning of the term force.
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Brake handles of motorcycles are generally covered with a toweled cloth?
Solve the crossword puzzle.
Across
1. Type of force which depends upon the roughness of a surface
2. An effect of friction
3. The force of friction caused due to fluids
4. Type of friction acting between two bodies at rest
5. Type of friction which occurs when applied force overcomes static friction
6. A special body design to enable minimum drage Down
