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Physics

What type of simple machine is a bottle opener?

  1. Wedge
  2. Class I lever
  3. Class II lever
  4. Wheel and axle

Machines

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Answer

Class II lever

Reason — Bottle opener is a class II lever where the load is between the fulcrum and the effort such that the effort arm is always longer than the load arm. Therefore, the mechanical advantage of the bottle opener is always greater than 1 (MA > 1).

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