Question

A 1225-kg car is raised using a hydraulic lift, which consists of a U-tube with arms of unequal areas, filled with oil with a density of 800. kg/m3 and capped at both ends with tight-fitting pistons. The wider arm of the U-tube has a radius of 18.0 cm and the narrower arm has a radius of 5.00 cm. The car rests on the piston on the wider arm of the U-tube. The wider piston is raised to a position that is 16.8 m higher than the smaller piston. What is the force that must be applied to the smaller piston? For purposes of this problem, neglect the weight of the pistons.

Answer 1