a wide tank of area A contng lqd to hgt H has orific at its base of area A/3 initial accel

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5 Dec 2009 15:34:34 IST

Subject: a wide tank of area A contng lqd to hgt H has orific at its base of area A/3 initial accel

Srujana (2780)

Olaaa!! Perrrfect answer.

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Using Bernoulli's theorem

$P_1-P_2= rac{1}{2}{ho}(v_1^2-v_2^2)+ho gH$

Since both the cross sections are open to atmosphere, P_1=P_2

Using equation of continuity

A_1v_1=A_2v_2

substituting it,

$v_1^2= rac{2gA_2^2H}{A_1^2-A_2^2}$

= rac{gH}{4}

Intitially the liq is at rest,

v_1^2-0=2aH

Rightarrow a= rac{g}{8}

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this reply: 5 points (with 1 Olaaa!! Perrrfect answer.

Olaaa!! Perrrfect answer.

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