In a car lift, compressed air exerts force F₁ on a small piston of radius 5.0 cm. This pressure lifts a car of mass 1350 kg on a large piston of radius 15 cm. The force F₁ required is: (g = 9.8 m/s²) (NCERT Example 9.6)
In a hydraulic lift, the small piston has area A₁ and the large piston has area A₂. If the small piston is pushed down by distance d₁, the large piston rises by distance d₂. The relation between d₁ and d₂ is:
In a hydraulic lift, if the large piston has 20 times the area of the small piston, and the small piston is pushed down by 40 cm, the large piston rises by:
Two syringes of different cross-sections filled with water are connected by a rubber tube. Diameters of smaller and larger pistons are 1.0 cm and 3.0 cm. A force of 10 N on the small piston produces a force on the large piston of: (NCERT Example 9.5)
