Question

A car on a hydraulic lift rests on a cylinder with a piston with a diameter...

A car on a hydraulic lift rests on a cylinder with a piston with a diameter of 30 cm. If a connecting cylinder is driven by compressed air with a pressure of 65 psi, how big the force approximately will be generated to the piston to lift the car?

a. 3,000 lb. b. 4,500 lb. c. 6,000 lb. d. 8,000 lb e. 12,000 lb

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Answer #1

y Diameter d= 30cm = 0.3m. Area of cross section A=17d² - (3.1415) (0.3)2 4 = 70.68x103 m2 Pressure p = 65 psi = 65 (6895 Pa)

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