An automobile of mass 900 kg is supported by a hydraulic lift having a large piston of cross-sectional area 10 m 2. The mechanic has a foot pedal attached to a small piston of cross-sectional area 0.1 m². What force in Newtons must be applied to the small piston to raise the automobile? Submit Answer Tries 0/2 What distance must the small piston be moved to raise the automobile 0.4 m?
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.
![**Hydraulic Lift Problem**
An automobile of mass 900 kg is supported by a hydraulic lift with a large piston that has a cross-sectional area of 10 m². The mechanic uses a foot pedal attached to a small piston with a cross-sectional area of 0.1 m².
**Question 1:**
What force in Newtons (N) must be applied to the small piston to raise the automobile?
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**Question 2:**
What distance must the small piston be moved to raise the automobile 0.4 m?
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