Homework Help: Physics

Posted by Owen on Monday, October 22, 2012 at 12:26am.

the input and output of hydraulic jack are respectively 1 cm and 4 cm in diameter. A lever with a mechanical advantage of 6 is used to apply force to the input piston. How much mass can the jack lift if a force of 180 N is applied to the lever and efficiency is 80%

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