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The hellcopter in the drawing is moving horlontally to the right at a constant velocity The woight of the helcopher is W-55,500 N. The i force i gd by the 21.0 What is the magnitude of the li force b) Determine the magnitude of the ar resistance i that opposes the motion sector, 4 ท
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Answer #1

Lcos21 21 Lsin210


given data
weight of the helicopter W = 55500N
resolve the force in vertical and horiZontal Direction
L cos21 = W
L = W/ cos21
lift force L = 55500N/ cos21
                    = 59488.5 N
aire resistance = L sin21
                        = 59488.5 N sin21 = 21304.4N

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