Question One Fluids, hydrostatics (a) Complete the following table (including units) Substance Density Relative Mass of
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Question One Fluids, hydrostatics (a) Complete the following table (including units) Substance Density Relative Mass of
Question One Fluids, hydrostatics (a) Complete the following table (including units) Substance Density Relative Mass of 0.8 m Specific Weight Density SAE 20 Oil 730 kg (b) The hydraulic braking system of a car relies upon a brake-pedal lever applying a force to a piston of diameter 12.5 mm. the piston in turn pressurises a fluid, which applies a force to the another piston of diameter 25 mm. this in turn applies a force to the braking pad. Determine the amplification of the force by this system. Hydraulic oil Fin - Fout Long pipe Brake-pedal piston Brake-pad piston (c) A well contains fresh water to a depth of 25 m. (i) Determine the absolute pressure at the bottom of the well on a day when the atmospheric pressure is 101 kPa. (ii) Show, diagrammatically, the variation in absolute pressure with depth [3 Quiz marks]