This is with regard to bernoulli's equation.
In one of the books (fundamentals of physics.. by resnick, halliday and walker) he gives the reason for the increase in velocity of fluid as it flows from a portion of higher cross section area in a horizontal tube to a smaller cross section as being...and i quote " the link between a change in speed and a change in pressure makes sanse if you consider a fluid particle . when the particle nears a narrow region , the higher pressure behind it accelerates it so that it then has a greater speed in the narrow region.. And when it nears a wide region , the higher pressure ahead of it decelerates it so that it then has a lesser speed in the wide region"
What i am unable to comprehend is .. why is the pressure in wide region higher compared to that in narrow region..???
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