On a distant planet, where the gravitational field strength is 10.0 N/kg, a block of mass 20 kg hangs from the end of a 5-m fishing boon of mass 14 kg. A cable is attached to the boon two meters from the pivot at an angle of 53º. The submerged block has a mass of 20 kg, but the tension in the rope supporting it is only 140 N (because of the buoyant force). T₂: = T₂= ? 53⁰ (a) The tension, T₂, in the cable is: Volblock 5 m water 3 m N (± 5N) T₁= 140 N (b) What is the volume of the block? Remember, the density of water is 1 g/cc. 20 kg cm³ (+5 cm³)
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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