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Question

Define the terms ‘work input’ and ‘work output’ about the machine.


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Solution

Work input :

  1. Work input is the amount of energy supplied to the machine.
  2. Work input may be defined as the product of the effort force applied to a machine and the distance through which the force is applied.
  3. Work input is given to the machine to get desired work.
  4. Example- The work done to hold the sugar piece by sugar tongs is the work input.

Work output :

  1. Work output is the energy given by the machine to do useful work.
  2. Work output may be defined as the product of the resistance force and the distance through which the force is applied.
  3. Work output is the amount of desired work that is done by the machine.
  4. Example- Work done by the nutcracker in cracking the nut is called work output.

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