
Beginner's
Guide to Propulsion
Forces in a Climb  Vectors
Activity
If so instructed
by your teacher, print out a worksheet page for these problems.
Before you begin:
Open the Beginner's
Guide to Propulsion. In the Propulsion
Index under Math Fundamentals, open and study the slide entitled
Vector Components. Then
under Aircraft Motion, open the slide entitled
Forces
in a Climb. Use the information available in these slides to help
you complete the activity.
 Using the first
equation: L cos (c) + F sin (c) D sin (c)  W = ma (vertical)
and the third equation: F D = F_{ex} , explain and show how
to obtain
the fourth equation: L cos (c) + F_{ex} sin (c)  W = ma (vertical).
 Using the
second equation and the third equation, explain and show how to obtain
the fourth equation.
 Why isn't
W multiplied by a sine or cosine?

Using
the given diagram, theorems/postulates of geometry, and vectors,
explain each term in the first two equations.
