Homework Help: physics

Posted by y912f on Wednesday, February 18, 2009 at 5:13pm.

what formula do i need in order to solve this

a force of 230 N applied on a hydraulic lift raises an automobile weighing 6500 N. If the applied force is exerted on a 7.0 m^2 piston, what is the area of the piston beneath the automobile?

can someone show me how to do this in steps or tell me what formula to use
thanks:)

physics - Damon, Wednesday, February 18, 2009 at 5:20pm
pressure is the same on the little piston and the big piston
so
230/7 = pressure = 32.86 N/m^2
32.86 * area = 6500
solve for area
physics - y912f, Wednesday, February 18, 2009 at 5:25pm
.0050 m^2
thnks

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