There were two posts reltaed to this question but both of them are so contradictory; the question goes(adsbygoogle = window.adsbygoogle || []).push({});

a 13,000kg helicopter accelerates upward at 0.41m/s^2 while lifting a 900kg car. to the nearest newton what is the lift force exerted by the air on the rotors?

now one post would be

Fnet = (13000)(9.8) + (900)(9.8)

which in a sense is what we are looking for (but unfortunately, is wrong for some reason)

and so i don't know what piece of hte puzzple im missing; im sure the 0.41m/s^2 comes in at some point. Is it the force required to accerleate the helicopter? If so what would that be.. im lost.

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# Helicopter problem

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