### Concept (1)

The word problems encountered most often with vectors are navigation problems. These navigation problems use variables like speed and direction to form vectors for computation. Some navigation problems ask us to find the groundspeed of an aircraft using the combined forces of the wind and the aircraft. For these problems it is important to understand the resultant of two forces and the components of force.

### Sample Problems (3)

Need help with "Navigation Problems" problems? Watch expert teachers solve similar problems to develop your skills.

###### Problem 1
How we find the course and groundspeed of an airplane when we are given its velocity and the wind velocity at 70 and 160 degrees.
###### Problem 2
How we find the course and groundspeed of a complicated airplane problem when we are given its velocity and the wind velocity at 210 and 270 degrees.
###### Problem 3
How we find the course and groundspeed of a complicated airplane problem when we are given its velocity and the wind velocity at 290 and 165 degrees.