Task id16384
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Task id16384
What work is done when lifting materials from the ground to build a uniform inclined beam, one end of which rests on a foundation located at ground level, and the other on a wall of height H = 4.0 m from the ground? The length of the beam is l = 15.0 m, its cross-section is s = 20 x 40 cm2. Material density p = 2.5·103 kg/m3.
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Detailed solution. Format gif
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