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NAME_________________________________ CLASS____________________
DATE____________

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**Beginner's Guide to Propulsion**

**Forces in a Climb - Vectors **-
**Worksheet**

- 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.