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प्रश्न
List three disadvantages of friction.
संक्षेप में उत्तर
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उत्तर
Disadvantages of friction:
- Friction produces heat which damages the moving parts of a machine.
- Friction produces wear and tear on the contacting surfaces. This reduces the life of machine parts, tires and shoe soles.
- A lot of energy is wasted due to friction to overcome it before moving.
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