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Physics 12 question City Y is due south of city X. In order to get from city X to city Y on time, an airplane must travel with a groundspeed of 285 km/h. If there is a wind blowing from East to West at 75.0 km/h, what should the plane's airspeed be? A. 210 km/h B. 275 km/h C. 295 km/h D. 360 km/h so basically i made a triangle , X being top , Y being south , and maing a right triangle pointing east direction. (http://imgur.com/0VEPN2T). I got an answer of B. However, my friend keeps telling me the answer is C. This is a practice exam and the teacher won't help us. Is the answer B or C? Thanks

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