An airplane travels 2100 km at a speed of and then
Chapter 2, Problem 66(choose chapter or problem)
An airplane travels 2100 km at a speed of and then encounters a tailwind that boosts its speed to for the next 2800 km. What was the total time for the trip? What was the average speed of the plane for this trip? [Hint: Does Eq. 211d apply?]
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