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प्रश्न
A machine is 75% efficient’. What do you understand by this statement?
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उत्तर
If a machine is 75% efficient, it means that 75% of the work input to the machine is obtained as the useful work output. The remaining 25% of the work input has been lost in overcoming the friction.
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संबंधित प्रश्न
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A boy does work while pushing a wall.
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Identify and mention the types of simple machines.
 |
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| ______ | ______ | _______ |
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| ______ | ______ | ______ |
The idea of a simple machine originated with the Greek philosopher Archimedes.
