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Geometry I Activity
If so instructed by your teacher, print out a worksheet page for these problems.


click on image for detailed description of Vector Balance of Forces for a Glider  

This slide shows the balance of forces on a descending glider. A horizontal, thin red line has been drawn parallel to the ground. The flight path of the glider is along the other thin red line which falls to the left. These two lines form an angle "a" called the glide angle.

The weight of the glider is given by the symbol "W" and is directed vertical, toward the center of the earth. The weight is then perpendicular to the horizontal red line drawn parallel to the ground. The drag of the glider is designated by "D" and acts along the flight path opposing the motion. Lift, designated "L," acts perpendicular to the flight path.

Problems:

  1. Prove angle a is congruent to angle b, given the above relationships 
  2. Prove angle b is congruent to angle k, given the above relationships 
  3. Prove angle a is congruent to angle k, given the above relationships.

Related Pages:
Standards
Worksheet
Lesson Index
Aerodynamics Index

 

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Editor: Tom Benson
NASA Official: Tom Benson
Last Updated: Thu, Jun 12 04:46:38 PM EDT 2014

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