Asked by India
Two planes take off from the same airport at the same time using different runways. One plane travels on a bearing S14 degrees W at 350 miles per hour. The other plane travel on a bearing N75 degrees E at 300 miles per hour. How far are the plane from each other 2 hours after takeoff?
Answers
Answered by
oobleck
How about you try one of these, and show how far you get?
Use the law of cosines for this one.
Use the law of cosines for this one.
Answered by
henry2,
Given: AB = 300 m/h[75o]CW
AC = 350mi/h[94o]CW
AB = 600mi[75o]CW. BA = 600mi[75+180]CW
BC = BA+AC = 600mi[255o]CW+700mi[94o]
BC = (600*sin255+700*sin94)+(600*cos255+700*cos94)i
BC = 119-204i = 236[-30.3] = 236mi[330o]CW. = distance bet. planes.
AC = 350mi/h[94o]CW
AB = 600mi[75o]CW. BA = 600mi[75+180]CW
BC = BA+AC = 600mi[255o]CW+700mi[94o]
BC = (600*sin255+700*sin94)+(600*cos255+700*cos94)i
BC = 119-204i = 236[-30.3] = 236mi[330o]CW. = distance bet. planes.
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