SOLUTION:
An airplane with a speed of 120 knots is headed west while a 30-knot wind is blowing from 120°. Find the ground speed to the nearest knot.
131 knots
141 knots
147 knots
164
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An airplane with a speed of 120 knots is headed west while a 30-knot wind is blowing from 120°. Find the ground speed to the nearest knot.
131 knots
141 knots
147 knots
164
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Question 1054421:
An airplane with a speed of 120 knots is headed west while a 30-knot wind is blowing from 120°. Find the ground speed to the nearest knot.
131 knots
141 knots
147 knots
164 knots Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! I'm assuming that west is 180°.
Coming in from 120° means that the wind has an angle of 300°.
V+W=(-120,0)+(30cos(300),30sin(300))
V+W=(-120,0)+(15,-25.98)
V+W=(-105, -25.98)
So then the resultant,
.
.
.
OK, looks like the assumption is not correct.
Please let me know what angle west is in your example.
