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A dentist's chair with a patient in it weighs 1610 N. The output plunger of a hydraulic system begins to lift?
A dentist's chair with a patient in it weighs 1610 N. The output plunger of a hydraulic system begins to lift the chair, when the dentist's foot applies a force of 65.4 N to the input piston. Neglect any height difference between the plunger and the piston. What is the ratio of the radius of the plunger to the radius of the piston?
Pressure = force/area
so f1/a1 = f2/a2
a2/a1 = f2/f1 = 65.4/1610
Now a = pi r^2, and the pi will cancel in the area ratio. So just take the square root of the area ratio to get the radius ratio
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