# Thread: What is the direction and magnitude of the plane's velocity relative to ground?

1. ## What is the direction and magnitude of the plane's velocity relative to ground? var addthis_config = {"data_track_clickback":false};

A small plane flies with a heading of 330 at an airspeed its speed relative to air of 300 km/hr. (That means that if there were no wind, the airplane would move in a direction of 30 to the west of north.) But there is a wind from the west (from 270) at 80 km/hr.

2. triangle, start with the winds velocity, make a horizontal line and label it 80km/hr. from the tip of this line draw another straight line that points northwest and makes a 60 degree angle with the first line. Connect the starting point of the first line to the second line and you have a triangle. label the last line 300km/hr.

solve the triangle
300km/hr
16.64 west of north

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