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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