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wolves5
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A plane is headed eastward at a speed of 210 km/hr. The wind is blowing southward at 85.0 km/hr. The velocity of the plane relative to the ground is?
a. 192 km/hr at an angle of 22 degrees south of east
b. 192 km/hr at an angle of 22 degrees east of south
c. 227 km/hr at an angle of 68 degrees south of east
d. 227 km/hr at an angle of 68 degrees east of south
For the velocity, I did square root (210^2 + 85.0^2) and I got 227 km/hr. However, when finding the angle, I did tan-1(85/210) and got 22 degrees. I don't know which one would be the correct answer then.
a. 192 km/hr at an angle of 22 degrees south of east
b. 192 km/hr at an angle of 22 degrees east of south
c. 227 km/hr at an angle of 68 degrees south of east
d. 227 km/hr at an angle of 68 degrees east of south
For the velocity, I did square root (210^2 + 85.0^2) and I got 227 km/hr. However, when finding the angle, I did tan-1(85/210) and got 22 degrees. I don't know which one would be the correct answer then.