The lift force L has an x and y component Lx and Ly:
Lx = Lsin21
Ly = Lcos21
In the y direction,
Lcos21 - 55600 = 0
Solve for L
In the x direction
Lsin21 - Fair = 0
where F air is the force of air resistance
The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 55600 N. The lift force generated by the rotating blade makes an angle of 21.0° with respect to the vertical.
(a) What is the magnitude of the lift force?
N
(b) Determine the magnitude of the air resistance that opposes the motion.
2 answers
lp[ok,ok
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