JEE • Physics

Fluid Mechanics & Properties of Matter

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mixed

Hydraulic Press and Elevator Fluid

The source opens the fluids section with hydraulic press, hydrostatic paradox, and upward accelerating elevator fluid.

p=fa=FAorF=Aafp=\frac{f}{a}=\frac{F}{A}\quad\text{or}\quad F=\frac{A}{a}f
PA=PB=PCP_A=P_B=P_C
p=ρh(g+a0)p=\rho h(g+a_0)
B=m(g+a0)B=m(g+a_0)
accelerating fluid
ha0

Variables & Notation

PP

pressure, power, or source power depending on context

ρ\rho

density or resistivity depending on context

Notes

  • Elevator relation is for upward acceleration a0a_0.