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April 20, 2014

Homework Help: Physics

Posted by Akbar on Monday, April 9, 2012 at 3:50pm.

In a hydraulic lift, the radii of the pistons are 2.93 cm and 10.1 cm. A car weighing W = 11.0 kN is to be lifted by the force of the large piston.

(a) What force Fa must be applied to the small piston? N


(b) When the small piston is pushed in by 10.4 cm, how far is the car lifted?
mm


(c) Find the mechanical advantage of the lift, which is the ratio W / Fa.

I really don't understand how to do this please explain step for step how to do this! I would really appreciate it, thank you.

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