The airspeed of an airplane is 200 km/h. When it is caught in a 200-km/h crosswind, its speed across the ground below is
A) 0 km/h.
B) 200 km/h.
C) 283 km/h.
D) 400 km/h.
E) 1600 km/h.
Answer: C
Physics & Space Science
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