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MMLU-Pro / 9188 / A differential hoist is used to lift a load of 450 pounds. If the larger wheel…

Problem

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question

A differential hoist is used to lift a load of 450 pounds. If the larger wheel of the hoist has 9 slots and the smaller wheel 8 slots and if the efficiency of the hoist is 33 (1/3)%, what is the effort required to raise the load?

category

physics

options

  1. 60 pounds
  2. 85 pounds
  3. 65 pounds
  4. 75 pounds
  5. 95 pounds
  6. 100 pounds
  7. 110 pounds
  8. 80 pounds
  9. 90 pounds
  10. 70 pounds

src

stemez-Physics

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