Question

A hydraulic lift has two cylindrical portions, one with a radius of 0.95 m and the other with a radius 0.25 m. Suppose there is a car of mass 1893 kg placed on the platform associated with the larger cylinder. What is the magnitude of the minimum force needed on the side of the smaller cylinder to keep the car lifted above ground? If the car is raised 0.39 m above ground, how far does the piston in the small cylinder have to move?

Fig: 1

Fig: 2