1. Sep 19, 2005 #1

   kevinlikesphysics

   

   a 4500kg helicopter accelerates upward at 2m/s^2 what lift force is exerted by the air on the propellers?

    

   kevinlikesphysics, Sep 19, 2005
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3. Sep 19, 2005 #2

   Doc Al

   

   Staff: Mentor

   Use Newton's 2nd Law. (Don't forget to include all the forces acting on the helicopter.)

    

   Doc Al, Sep 19, 2005

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