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 Jun 1st 2008, 06:54 AM #1 Junior Member   Join Date: Apr 2008 Posts: 9 integral physics application problems integral physics application problems We are now applying calculus to physics problems and I am having trouble coming up with the correct integrals. An anchor weighing 100 lb in water is attached to a chain weighing 3 lb per foot in water. Find the work done to haul the anchor and chain to the surface of the water from a depth of 25 ft. I know I need an integral from 0 to 25 but what do I need to multiply my distance term by???? A rectangular swimming pool 50 ft long by 20 ft wide and 10 ft deep is filled with water to a depth of 9 ft. Use an integral to find the work required to pump all the water out over the top. This one I thought would just be the integral from 0 to 10 of 50 x 20 x 9 x density of water per cubic foot times y dy but I am not getting the correct answer. Thank you for making this site so helpful and helping not pull all of my hair out!!!!!
 Jun 1st 2008, 07:43 AM #2 Junior Member   Join Date: Apr 2008 Posts: 9 Integral physics application problems Thanks but I received help I needed from Calculus forum and I don't want anyone to waste their time. I do want to say thank you to all of you folks who post replies and care about struggling students!!!!!

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