As shown, a server at a restaurant is carrying a tray that has a glass of water
As shown, a server at a restaurant is carrying a tray that has a glass of water resting on it. (Part C figure) The glass and tray exert a force with magnitude F1 = 30.0 N on the server’s hand. If L1 = 0.396 m, L2= 0.289 m, L3 = 6.10×10−2 m, alpha_1 = 155 degrees, and alpha_2 = 130 degrees, what is the moment of force about the shoulder joint at point A? Assume that moments acting in the counterclockwise direction about point A are positive whereas moments acting in the clockwise direction are negative. Express your answer numerically in newton-meters to three significant figures.