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.(adsbygoogle = window.adsbygoogle || []).push({});

(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]F_{x}= ma_{x}--> 0 (because constant velocity means 0 acceleration)= Lsin(21)

and [tex]\Sigma[/tex]F_{y}= ma_{y}-->Lcos21-57600

now I dont know what to do. What did i do wrong?

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Newton's 2nd Law confusing!

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