Measure the distance of the water from the board. Your first measurement will be when you first fill the hole. Your water should meet the board.Repeat your measurement every two minutes until you have five measurements.Each time you take a measurement subtract it from the previous measurement to see how far the water has dropped over that two minutes.Calculate the drop in minutes per inch
Question
Measure the distance of the water from the board. Your first measurement will be when you first fill the hole. Your water should meet the board.Repeat your measurement every two minutes until you have five measurements.Each time you take a measurement subtract it from the previous measurement to see how far the water has dropped over that two minutes.Calculate the drop in minutes per inch
Solution
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Start by filling the hole with water until it reaches the level of the board. This will be your initial measurement.
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Set a timer for two minutes. When the timer goes off, measure the distance from the water level to the board. This will be your second measurement.
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Subtract the second measurement from the first to find out how much the water level has dropped in the first two minutes.
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Repeat steps 2 and 3 for the next three measurements. Each time, subtract the current measurement from the previous one to find out how much the water level has dropped in the last two minutes.
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Once you have all five measurements, you can calculate the average drop in water level per minute. To do this, add up all the differences you calculated in steps 3 and 4, then divide by the total number of minutes (which is 8 minutes in this case).
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To find the drop in minutes per inch, simply divide the number of minutes by the average drop in water level. This will give you the rate at which the water level is dropping, in minutes per inch.
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