34. A barber’s chair with a person in it weighs 2100 N. The outputplunger of a hydraulic system begins to lift the chair when the barber’sfoot applies a force of 55 N to the input piston. Neglect any height diff erence between the plunger and the piston. What is the ratio of the radius ofthe plunger to the radius of the piston?
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
34. A barber’s chair with a person in it weighs 2100 N. The output
plunger of a hydraulic system begins to lift the chair when the barber’s
foot applies a force of 55 N to the input piston. Neglect any height diff erence between the plunger and the piston. What is the ratio of the radius of
the plunger to the radius of the piston?
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