- #1
turpy
- 12
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Homework Statement
A plane has an airspeed of 200 mph. The pilot wishes to reach a destination 600 mi due east, but a wind is blowing at 10.0 mph in the direction 10.0 degrees north of east.
In what direction must the pilot head the plane in order to reach her destination?
______________ degrees south of east
The attempt at a solution
I drew two vectors
one horizontal facing east of magnitude 200 mph (plane) + 10cos10 (wind)
and one vertical of magnitude 10sin10
I solved for the angle b/w the horizontal vector and the resultant vector
arctan theta = (10sin10/(200+10cos10))
and I get that theta = 0.474 degrees south of east
When I type this answer (0.474) into masteringphysics.com, it tells me that I'm incorrect.
What is it that I'm doing wrong?
Thanks!
A plane has an airspeed of 200 mph. The pilot wishes to reach a destination 600 mi due east, but a wind is blowing at 10.0 mph in the direction 10.0 degrees north of east.
In what direction must the pilot head the plane in order to reach her destination?
______________ degrees south of east
The attempt at a solution
I drew two vectors
one horizontal facing east of magnitude 200 mph (plane) + 10cos10 (wind)
and one vertical of magnitude 10sin10
I solved for the angle b/w the horizontal vector and the resultant vector
arctan theta = (10sin10/(200+10cos10))
and I get that theta = 0.474 degrees south of east
When I type this answer (0.474) into masteringphysics.com, it tells me that I'm incorrect.
What is it that I'm doing wrong?
Thanks!