Consider the equations P = L i m Δ S → 0 F Δ S and P 1 - P 2 = ρ g z In an elevator accelerating upward,

Question

Consider the equations P = L i m Δ S → 0 F Δ S and P 1 - P 2 = ρ g z In an elevator accelerating upward,, both the equations are valid, first is valid but not the second, second is valid but not the first, both are invalid

MARKS App · Accepted Answer

Equation 1 is universal equation of pressure but the second equation is valid only when it is in state of rest, while moving upward the pressure difference is Δ P = z ρ g + a

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