Saturday
December 20, 2014

Homework Help: Physics

Posted by James Arnold on Friday, January 18, 2013 at 12:40am.

A 104 N car is lifted by a manually operated hydraulic lift. The area of the shaft of the lift is 80 cm2; the
area of the piston that forces liquid into the system is 2 cm2. What minimum force must be exerted on this
piston to lift the car?

a. 104 N
b. 125 N
c. 250 N
d. 62.5 N
e. 5000 N

Also, what formulas are used? Thanks.

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