Question

. Two cylindrical vessels fitted with pistons A and B of area of cross section 8 cm2 and 320 cm2 respectively, are joined at their bottom by a tube and they are completely filled with water. When a mass of 4 kg is placed on piston A,find : (i) the pressure on piston A, (ii) the pressure on piston B, and (iii) the thrust on piston B.​

Answer 1

Step-by-step explanation:

Let E be the effort applied on the smaller piston A and L be the load required on the larger piston B.

Area of cross section of pistion A=8cm

2

Area of cross section of pistion A=320cm

2

(i) Pressure acting on piston A in the downward direction =Thrust/Area=E/8=4/8=0.5

∴Pressure acting on water =E/8=0.5 (according to Pascal's Law)

(ii) ∴ Pressure acting on piston B=E/8=0.5 (according to Pascal's Law)

(iii) Thrust acting on piston B in the upward direction =Pressure ×Area of B

E×320/8 =160