Homework Help: physics

Posted by jsh on Thursday, January 10, 2013 at 12:00pm.

Does this question even make sense: A 7900 kg helicopter carrying a 1100 kg load is accelerating upwards at 1.2 m/sec squared. What is the force of air resistance pushing down on the helicopter?

physics - Steve, Thursday, January 10, 2013 at 12:09pm
not unless you know something about the force pushing upward.

net force F = ma
Forceup - forcedown = (7900+1100)(1.2)

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