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An input force of 60 lb is applied to the 6 in. handle of a wrench used to tighten a 1/4 in. diameter bolt. An actual output force of 600 lb is...

  1. An input force of 60 lb is applied to the 6 in. handle of a wrench used to tighten a 1/4 in. diameter bolt. An actual output force of 600 lb is produced. If the bolt has 10 threads per inch, what is the ideal mechanical advantage? what is the efficiency?
  2. A child sits at the edge of a platform rotating at 20 rev/min. The platform is 13m in diameter. What is the period of the motion? what is the child's speed?

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ideal mechanical advantage is 1440 N... View the full answer

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1) efficiency = 41.67 % 2) period of... View the full answer

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