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OpenStudy (anonymous):
First question in attached photo. Please help
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OpenStudy (anonymous):
photo?
OpenStudy (anonymous):
I guess it's not showing. The question is "a 4700kg helicopter accelerates upward at 2.0 m/s^2. What lift force is exerted by the propellers?"
OpenStudy (anonymous):
Use \[\sum_{}^{}F = ma\] and solve for F with the mass and acceleration
OpenStudy (anonymous):
So multiply m and a? Would that be F=4600(2.0) = 9,200?
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