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ARC-Easy / Mercury_LBS10795 / A screwdriver is used to pry the lid off a paint can. The resistance arm is 0.5…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A screwdriver is used to pry the lid off a paint can. The resistance arm is 0.5 centimeters. The effort arm is 20 centimeters. What is the mechanical advantage of the screwdriver?

choices

  • 0.025
  • 10
  • 19.5
  • 40

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Source and history

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