The large piston in a hydraulic lift has a radius of 20 cm. (a) What force must be applied to the small piston of radius 2 cm to raise a car of mass 1500 kg? (b) When the car is lifted by distance 20 cm, what is the work done by the force acting on the small 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.
The large piston in a hydraulic lift has a radius of 20 cm. (a) What force must be
applied to the small piston of radius 2 cm to raise a car of mass 1500 kg? (b) When the
car is lifted by distance 20 cm, what is the work done by the force acting on the small
piston?
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