gomezlisette912 gomezlisette912
  • 22-10-2021
  • Physics
contestada

The input work on pulley system is 75J. If the pulley system is 84 percent efficient, then what is the output work from the pulley system?

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tonystark2334
tonystark2334 tonystark2334
  • 22-10-2021

Answer: 63 J

Explanation: The effiency () of a machine is given by the ratio between the output work  and the input work :

Where:

Isolating :

Finally:

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