Calculating velocity of water flow form tap

AI Thread Summary
To calculate the velocity of water flow from a tap, the discussion centers on a scenario where 475 mL of water is collected in one minute from a stream with a diameter of 0.700 cm. The formula v = √2gh is suggested, but participants question its applicability without the necessary information. The first step is to determine the initial velocity of the water at the top of the stream before considering changes in velocity 20 cm below. Understanding the flow rate and diameter is crucial for accurate calculations.
jannx3
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Homework Statement



A measuring cylinder collects 475 mL of this
water in a minute. At the top the diameter of the stream is 0.700 cm.

Homework Equations




What is the velocity of the stream 20.0 cm below the top?

The Attempt at a Solution


im not sure which formula to use?
i was thinking v=√2gh
 
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jannx3 said:

Homework Statement



A measuring cylinder collects 475 mL of this
water in a minute. At the top the diameter of the stream is 0.700 cm.

Homework Equations




What is the velocity of the stream 20.0 cm below the top?

The Attempt at a Solution


im not sure which formula to use?
i was thinking v=√2gh

You are given a known volume of water which collects in a given amount of time in a graduated cylinder with a known diameter. Why do you think v = SQRT(2gh) is the appropriate formula to use? Do you have the necessary information to even use this formula?
 
First, get the velocity of the water at the top.

Then figure out how much the velocity changes 20 cm. below the top.
 

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