A hydraulic lift consists of two oil-filled cylindrical pipes of different diameters. A worker pushes down on a piston a

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A hydraulic lift consists of two oil-filled cylindrical pipes ofdifferent diameters. A worker pushes down on a piston at one end,raising the car on a platform at the other end. You must be able tolift cars up to 1800 kg, plus the 400 kg platform on which they areparked. To avoid injury to your workers, the maximum amount offorce a worker should need to exert is 150 N. The diameter of thepipe the worker pushes down on is 0.2m
a) What should be the diameter of the pipe under theplatform?
b) If the worker pushes down with a stroke 150 cm long, by howmuch will he raise the car at the other end?