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(Solved): Free body diagram L 21.04 Air resistance W Weight Figure 2.2 (b) The helicopter depicted in Fi ...



Free body diagram
L
21.0?4
Air resistance
W Weight
Figure 2.2
(b) The helicopter depicted in Figure 2.2 above is moving horiz

Free body diagram L 21.0?4 Air resistance W Weight Figure 2.2 (b) The helicopter depicted in Figure 2.2 above is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 53,800 N. The lift force, L generated by the rotating blades make an angle of 21.0° with respect to the vertical (y-axis). Besides L and W, the only other force acting on the helicopter is R, air resistance. Based on this, answer the following (Show your calculation): (i) What is the magnitude of the lift force (L)? (4 x ½ mark) (ii) Determine the magnitude of air resistance, R, that opposes the forward motion of the helicopter. (4 x ½ mark) L Lift force 21.0? RS constant velocity V constant


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