posted by James Arnold on .
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.
10^4/40 = 250 N
The 40 comes from the area ratio.
Please use a ^ before exponents.