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प्रश्न
Suppose the tube in the previous problem is kept vertical with B upward. Water enters through B at the rate of 1 cm3/s. Repeat parts (a), (b) and (c). Note that the speed decreases as the water falls down.
उत्तर
Water enters through B at the rate of 1 cm3s−1.
(a) Speed of water at A,
\[\vec{V}_A = 25 cm/s\]v
(b) Speed of water at B,
\[\vec{V}_B = 50 cm/s\]
(c) By Bernoulli's equation, we have:
`1/2pv_A^2+ρgh_A+P_A=1/2ρvB^2+ρgh_B+P_B`
`=>P_A-P_B=1/2×1×1875+1/2×1000×15/16`
=1875 dyn /cm2=188 N/m2
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