A pilot knows a 7.00 km distance lies between two landmarks A and B on the level ground below. When he is over landmark A, he determines that landmark B lies 20.0 degrees below the horizontal.
a. What is a scalar? Give an example of a scalar.
b. What is a vector? Give an example of a vector.
c. Make a sketch, showing the plane and landmarks A and B. Indicate all relevant distances and angles.
d. Give the Cartesian coordinates of the landmarks using A as a reference.
e. What is the airplane's altitude?