An airplane flies 120 km at a constant altitude in a direction 30.0° north of east. A wind is blowing that results in a net horizontal force on the plane due to the air of 2.40 kN in a direction 10.0° south of west. How much work is done on the plane by the air?
Note on the meaning of 1E8 in answers: 1E8 is an alternative way to write "10 to the power of 8". So 1E8 is 100 000 000. It is a convenient notation when superscripts are difficult to accommodate.
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Expert's answer
2020-06-11T10:34:37-0400
Let, the distance traveled by airplane d=120km=12×104m and force acting on it by air is F=2.40kN=2.4×103N ,
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