The machine represented in the diagram can be used to lift water from a well.

      

The machine represented in the diagram can be used to lift water from a well.
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A force of 50N applied on the handle lifts water of weight 180N
i) Calculate the efficiency of the machine.
ii) Give a reason why the efficiency is less than 100%.

  

Answers


sharon
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ii)- Friction.
sharon kalunda answered the question on September 30, 2019 at 12:46


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