The face of a vertical dam has the shape of an isosceles triangle of altitude 4 m with an upper base of 6 m submerged vertically in the water. Find the force exerted by the water on the dam when the upper base is parallel to and 3 m below the surface of the water. (P = wight per unit volume water)

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter1: Vectors
Section1.4: Applications
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The face of a vertical dam has the shape of an isosceles triangle of altitude 4 m with an upper base of
6 m submerged vertically in the water. Find the force exerted by the water on the dam when the
upper base is parallel to and 3 m below the surface of the water.
(P =
wight per unit volume water)
4
3
A
F = P
1/2 St
(14 y - y²) dy
0
B
None of the choices
3
F = p
La
(7- y
3y
-) dy
2
0
4
3y
D F
= Pf* (14 - 2y) (²) dy
4
0
3
3
ⒸF-2
F =
(7y - y²) dy
0
Transcribed Image Text:The face of a vertical dam has the shape of an isosceles triangle of altitude 4 m with an upper base of 6 m submerged vertically in the water. Find the force exerted by the water on the dam when the upper base is parallel to and 3 m below the surface of the water. (P = wight per unit volume water) 4 3 A F = P 1/2 St (14 y - y²) dy 0 B None of the choices 3 F = p La (7- y 3y -) dy 2 0 4 3y D F = Pf* (14 - 2y) (²) dy 4 0 3 3 ⒸF-2 F = (7y - y²) dy 0
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