a plane flies 1.5 hours at 110 mph on a bearing of 40°, it then turns and flies 1.3 hours at the same speed on a bearing of 130°
. how far is the plane from its starting point?
1 answer:
<span>Final X value = [(cos 40)*(110m/h *1.5h)] + [(cos 130)*(110m/h*1.8h)] = (126.397 - 127.271)m = -.0873 mile.
Final Y value = [(sin 40)*(110m/h*1.5h)] + [(sin 130)*(110m/h*1.8h)] = (106.059) + 151.677)m = 257.736 Mile
Distance from starting point = .873m] / [sin (arc tan .873/257.736)] = 257.737 miles</span>
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