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About once every 30 minutes, a geyser known as Old Faceful projects water 18.0 m straight up into the air. Use g = 9.80 m/s2, and take atmospheric pressure to be 101.3 kPa. The density of water is 1000 kg/m3. What is the speed of the water when it emerges from the ground?

Respuesta :

Answer:

Speed of the water that emerge out of the pipe is 18.8 m/s

Explanation:

Since we know that water drops projected upwards to maximum height of 18 m

So here we can use kinematics equations here

[tex]v_f^2 - v_i^2 = 2 a d[/tex]

here we have

[tex]v_f = 0[/tex]

[tex]d = 18 m[/tex]

[tex]a = -9.80 m/s^2[/tex]

so we will have

[tex]0 - v_i^2 = 2(-9.80)(18)[/tex]

[tex]v_i = 18.8 m/s[/tex]

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