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3. City B lies 5.00 x102 km from city A in a direction 30.0° east of north. An airplane is required to travel from A to B in 2.00 hr. (a) If no wind is blowing, in what direction and with what speed (b) If the wind is blowing at 60.0 km/h in a direction that is 60.0° (Hint: A good diagram is essential.) must the airplane travel? east of north, with what air velocity must the airplane fly? S 1080 SG 9-6
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