Calculate the maximum height to which water could be squirted with the hose if it emerges from the nozzle at 16.2 m/s.

Question

Calculate the maximum height to which water could be squirted with the hose if it emerges from the nozzle at 16.2 m/s.

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Diễm Thu 4 years 2021-07-31T06:13:55+00:00 1 Answers 26 views 0

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  1. Tryphena
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    2021-07-31T06:15:06+00:00
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    Answer:

    The maximum height to which water could be squirted with the hose is 13.380 meters.

    Explanation:

    A line of current of a fluid can be explained sufficiently by Bernoulli’s Theorem. In this case, the system can be simplified due to neglectance of changes in absolute pressure. Water is squirted with an initial speed and reaches its maximum height, where final speed is zero. That is to say:

    \frac{v_{1}^{2}}{2\cdot g} +z_{1} = \frac{v_{2}^{2}}{2\cdot g} +z_{2}

    Where:

    z_{1}, z_{2} – Initial and final height of water, measured in meters.

    g – Gravitational acceleration, measured in meters per square second.

    v_{1}, v_{2} – Initial and final speed of water, measured in meters per second.

    If z_{1} = 0\,m, v_{1} = 16.2\,\frac{m}{s}, v_{2} = 0\,\frac{m}{s} and g = 9.807\,\frac{m}{s^{2}}, then:

    z_{2} = \frac{v_{1}^{2}-v_{2}^{2}}{2\cdot g} +z_{1}

    z_{2} = \frac{\left(16.2\,\frac{m}{s} \right)^{2}-\left(0\,\frac{m}{s} \right)^{2}}{2\cdot \left(9.807\,\frac{m}{s^{2}} \right)} +0\,m

    z_{2} = 13.380\,m

    The maximum height to which water could be squirted with the hose is 13.380 meters.

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