Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: What equation do you use for this?

  1. Sep 19, 2005 #1
    a 4500kg helicopter accelerates upward at 2m/s^2 what lift force is exerted by the air on the propellers?
  2. jcsd
  3. Sep 19, 2005 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Use Newton's 2nd Law. (Don't forget to include all the forces acting on the helicopter.)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook