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Unformatted text preview: ) From the equation x 2 y2 32, it follows that a thin y 2 y, where y is W
0 (490 24.5x) dx 490x 12.25x 2 4900 J.
0 horizontal rectangle has area 2 9 6. When the bucket is x m off the ground, the water weighs F(x) Then
20 distance from the top, and pressure 62.4y. The total force is approximately (62.4yk)(2 9
k 1 3 n 490 20 4x/5 20 490 1 x 25 490
20 19.6x N. W
0 (490 19.6x) dx 490x 9.8x 2 5880 J.
0 124.8yk
9 n k 1 yk2) y 9 yk2 y. 41.6(9 y 2)3/2
3 0 7. When the bag is x ft off the ground, the sand w...
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This note was uploaded on 10/05/2011 for the course MAC 1147 taught by Professor German during the Spring '08 term at University of Florida.
 Spring '08
 GERMAN

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