Answer to Question #265092 in Physics for Sumpa

Question #265092

If the lever arm of a screw is 18 inches long and the pitch of the threads is 0.125 inch, how much weight will the jack lift if 50 pounds of force is applied at the end of the lever arm ignoring friction?

Expert's answer

The weight is

"W=F\u00b7\\frac{2\\pi R}{p}=45239\\text{ lb}."

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