- #1
PhysicFailure
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A helicopter is moving horizontally to the right at a constant velocity. The weight of the helicopter is W = 57600 N. The lift force L 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 in N?
(b) Determine the magnitude of the air resistance R that opposes the motion.
I used [tex]\Sigma[/tex]Fx= max--> 0 (because constant velocity means 0 acceleration)= Lsin(21)
and [tex]\Sigma[/tex]Fy= may-->Lcos21-57600
now I don't know what to do. What did i do wrong?
(a) What is the magnitude of the lift force in N?
(b) Determine the magnitude of the air resistance R that opposes the motion.
I used [tex]\Sigma[/tex]Fx= max--> 0 (because constant velocity means 0 acceleration)= Lsin(21)
and [tex]\Sigma[/tex]Fy= may-->Lcos21-57600
now I don't know what to do. What did i do wrong?