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(Solved): As shown, a pipe is anchored to a wall at point A. (Figure 2) During the pipe's installation, severa ...



As shown, a pipe is anchored to a wall at point A. (Figure 2) During the pipe's installation, several forces are applied to the pipe at different locations. If F1?1 = 61.8 NN , F2?2 = 73.0 NN , F3?3 = 88.9 NN , F4?4 = 54.7 NN , d1?1 = 0.110 mm , d2?2 = 0.270 mm , and d3?3 = 0.170 mm , what is MRA???, the net moment about point A due to these forces? Assume that moments acting counterclockwise about point A are positive whereas moments acting clockwise are negative.

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Learning Goal: To understand the concept of moment of a force and how to calculate it using a scalar formulation. The magnitude of the moment of a force with a magnitude around a point is defined as follows: where is the force's moment arm. The moment arm is the perpendicular distance from the axis at point to the force's line of action. A stool at a restaurant is anchored to the floor. When a customer is in the process of sitting down, a horizontal force with magnitude is exerted at the top of the stool support as shown in the figure. (Figure 1) When the customer is seated, a vertical force with magnitude is exerted on the stool support. If the maximum moment magnitude that the stool support can sustain about point is , what is the maximum height that the stool can have if the magnitudes of the two forces are and ? Assume that moments acting counterclockwise about point are positive whereas moments acting clockwise about are negative. Express your answer numerically in meters to three significant figures.


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