일반물리학 1 — Fluids: Problem 24

24 A piston of cross-sectional area a is used in a hydraulic press to exert a small force of magnitude f on the enclosed liquid. A connecting pipe leads to a larger piston of cross-sectional area A (Fig. 14-31). (a) What force magnitude F will the larger piston sustain without moving? (b) If the piston diameters are 3.50 cm and 60.0 cm, what force magnitude on the large piston will balance a 20.0 N force on the small piston?