In a car lift used in a service station, compressed air exerts a force on a small piston of circular cross section having a radius of r1 = 5.05 cm. This pressure is transmitted by an incompressible liquid to a second piston of radius 14.7 cm.

(a) What force must the compressed air exert on the small piston in order to lift a car weighing 13,300 N? Neglect the weights of the pistons.

(b) What air pressure will produce a force of that magnitude?

(c) Show that the work done by the input and output pistons is the same.

(d) A hydraulic lift has pistons with diameters 7.90 cm and 35.3 cm, respectively. If a force of 825 N is exerted at the input (smaller) piston,what maximum mass can be lifted at the output piston?

Answer rating: 100% (QA)

r1 00505 m r2 0147m a F2 13000N Use Pascals principle F... View the full answer