"Suppose you adjust your garden hose nozzle for..." was answered by our experts

Alfred Elliott

Answered question

2023-03-16

Suppose you adjust your garden hose nozzle for a hard stream of water. You point the nozzle vertically upward at a height of

1.5 m

above the ground (the hose is

1.5 m

off the ground). When you quickly move the nozzle from the vertical you hear the water striking the ground next to you for another

2.1 s

.What is the water speed as it leaves the nozzle?

Billak9x7u

Beginner2023-03-17Added 6 answers

Explanation:
Since we are aware that it will adhere to kinematics

y - y 0 = v y t + \frac{1}{2} a t^{2}

now we will have

0 - 1.5 = v y (2.1) - \frac{1}{2} (9.8) {(2.1)}^{2}

here we can now solve above equation for speed

v y

- 1.5 = 2.1 v y - 21.61

so we have

21.6 - 1.5 = 2.1 v y

v y = \frac{20.11}{2.1} v y = 9.57 m / s

Hence, the speed of water is

v y = 9.57 m / s

as it leaves the nozzle.

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