ection: Read, analyze and solve the following word probiems. 1. A large piston of a hydraulic lift has a radius of 3 m and is loaded with a 2300 kg car. The small piston of the hydraulic ift has a radius of 0.3 m. (a) What is the minimum downward force required to apply in the small piston to lift the car at constant velocity? (b) What is the mechanical advantage of the hydraulic lift system? (c) If the small piston descended by 4 m, how high will the large piston rise?
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.
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