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A hydraulic lift has 2 connected pistons with cross-sectional areas 20 cm2 and 680 cm2. It...

A hydraulic lift has 2 connected pistons with cross-sectional areas 20 cm2 and 680 cm2. It is filled with oil of density 710 kg/m3.

  1. What mass must be placed on the small piston to support a car of mass 1400 kg at equal fluid levels?

m =

  1. With the lift in balance with equal fluid levels, a person of mass 90 kg gets into the car. What is the equilibrium height difference in the fluid levels in the pistons?

Δh =

  1. How much did the height of the car drop when the person got in the car?
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