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November 01, 2025, 07:28:13 pm
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Author Topic: Desperately need help - vol of revolutions!  (Read 769 times)  Share 

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sajib_mostofa

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Desperately need help - vol of revolutions!
« on: August 22, 2010, 09:09:57 pm »
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A truncated cone is formed by cutting off the apex from a cone whose height is equal to the radius of the open top, R.
Let r = heigh ot portion cut off
Let H = height of remaining truncated cone

Use calculus to show that the volume of this tank is given by V = π/3[(R3 - (R - H)3]
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Richiie

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Re: Desperately need help - vol of revolutions!
« Reply #1 on: August 22, 2010, 10:23:44 pm »
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Using similar triangles will definitely help you.
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2009: Biology
2010: English, Mathematical Methods (CAS), Specialist Maths, Chemistry, Physics
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theuncle

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Re: Desperately need help - vol of revolutions!
« Reply #2 on: August 24, 2010, 12:03:24 am »
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Big faizul!
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sajib_mostofa

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Re: Desperately need help - vol of revolutions!
« Reply #3 on: August 28, 2010, 10:53:01 am »
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LOL what a coincidence
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