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13.03.2020 •
Mathematics
A triangular plate with base 6 m and height 2 m is submerged vertically in water such that the highest vertex of the plate is 4 feet below the surface and the base is horizontal to the surface.
Express the hydrostatic force against one side of the plate as an integral and evaluate it. (Round your answer to the nearest whole number. Use 9.8 m/s2 for the acceleration due to gravity. Recall that the weight density of water is 1,000 kg/m3.)
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Ответ:
The maximum length is 1.4 meters.
Step-by-step explanation:
The seesaw forms a triangle as shown in the figure, whose hypotenuse is the length of seesaw. Thus from trigonometry:
Which is the maximum length of the seesaw that we need if it is to rise to 1 meters above the ground.