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**Unformatted text preview: **the snow fills the car at a rate of . Find the mass of snow that has occupied the car in 90 minutes. The mass of the car after 90 minutes is the sum of the mass of the empty car and the mass of snow accumulated. Rewrite the equation for . Substitute 3800 kg for , 315 kg for , and for . Find . Thus, the speed of the railroad car after 90 minutes is . http://www.hwproblems.com/cgi-bin/book.cgi?bookid=0044&cptn=7pr10&id=489216 [2/4/2008 4:44:48 PM]...

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