Continuity equation:

$\overline{){\mathbf{Q}}{\mathbf{=}}{{\mathbf{A}}}_{{\mathbf{1}}}{{\mathbf{v}}}_{{\mathbf{1}}}{\mathbf{=}}{{\mathbf{A}}}_{{\mathbf{2}}}{{\mathbf{v}}}_{{\mathbf{2}}}{\mathbf{=}}{{\mathbf{A}}}_{{\mathbf{n}}}{{\mathbf{v}}}_{{\mathbf{n}}}}$

Using continuity:

v_{1}A_{1} = v_{2}A_{2}

v_{1}π(d_{1}/2)^{2} = v_{2}π(d_{2}/2)^{2}

Air flows through the tube shown in the figure. Assume that air is an ideal fluid. v_{1} = 149 m/s

What is the air speed v_{2} at point 2?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Bernoulli's Equation concept. If you need more Bernoulli's Equation practice, you can also practice Bernoulli's Equation practice problems.