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. When you quickly turn off the nozzle, you hear the water striking the ground next to you for another 1.8 s. What is the water speed as it leaves the nozzle?

The  speed of the water  as it leaves the nozzle is  

Explanation:

From the question we are told that

   The height of the nozzle above the ground is  

   The time taken for the flow to stop is  t =  1.8 s

According the second law of motion

making the initial velocity the subject

here  

substituting value

b.

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