3. Find the mass of the person in kg required to lift up a car, if the diameter of piston A (A₁) is 0.16 cm, the diamete

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3 Find The Mass Of The Person In Kg Required To Lift Up A Car If The Diameter Of Piston A A Is 0 16 Cm The Diamete 1 (171.01 KiB) Viewed 47 times

3. Find the mass of the person in kg required to lift up a car, if the diameter of piston A (A₁) is 0.16 cm, the diameter of piston B (A₂) is 0.02 m, and the weight of car on piston B and piston B are 11000 Nand 1000 N respectively. Using Pascal's Rule Fi F₂ F₁ = Dia Ai Find the work done by piston B in J, if piston A moves down 0.4 m and the efficiency of the simple jack is 75%. (14 marks) Car mass A₁ Piston APressu A2 = 0.16cm, r=0.08cm A₁ = πr² = 3.14 (0,08)² = 0.20096 cm² F₁ = ² · A₁ = Dia A₂ = 0.02m, r = 0,01m A₂ = Tir² = 3,14 (0.01)² = 0.000314m² = 0.0314m² 12000 0.0314 W2 Pressure m= Since F= m.g F F2 A2 = 11000 + 1000 =12000 N = Piston B 76800 9.81 C 0.20096 -76800 N 7828.746177 kg Work Force Distance = 76800 -0.4 = 30720 J Work done in Piston B Workdone in Piston A = 0.75 W.S in PB = 0,75 X 30720 =23040J