The wedge has an IMA of , the wheel and axle has an IMA of , and the lever has an IMA of
The equation for compound IMA is
So the IMA of the initial punch into the can is
The IMA of of when you turn the crank to cut is
So for every one pound of force you put in to the can opener you actually put out either twenty four and a half or twenty six and a half pounds of force.
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