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प्रश्न
Match the following columns
| 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 |
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उत्तर
| Column A | Column B |
| a) Non contact force | 3) gravitational force |
| b) Like poles | 1) repel |
| c) Contact force | 5) force of friction |
| d) Mass | 2) kg |
| e) Weight | 6) kgf |
| f) Friction | 4) wear and tear |
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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
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