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OpenStudy (noahbred):
Please help If 20 N of force are required to lift an object without a machine and 5 N are needed with the machine, what is that machine’s mechanical advantage? 10 2 100 4
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RhondaSommer (rhondasommer):
I believe four... just because you have to divide the normal force to lift an object by the machines force :) does that help?
OpenStudy (anonymous):
The answer is D. Do you know why?
OpenStudy (noahbred):
not sure?
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