physics
posted by sarah .
The engine on a 0.2kg model airplane exerts a forward force on the plane of 10N. If the plane accelerates at 2m/s2, what is the magnitude of the resistive force due to the wind acting on the airplane?

physics 
black_widow
Let the resistive force = f
F=ma
10f=0.2x2
f=9.6N
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