Parachute lab/Test
I Prelab

What is terminal velocity?
 
 
 

Explain how terminal velocity relates to Newton’s 3rd Law.
 
 
 
 

II Design and Test

Your job: Design a parachute that will carry a 50 g mass and fall more slowly than any other using only the materials supplied.

Materials:
-Two plastic trash bags
-50 g mass
-10 ft of string
-Scotch tape

(No, you may not have any additional materials)
 

The winning group (i.e., the group with the slowest time) will have demonstrated that they have mastered their understanding of Newton’s 3rd Law better than the others by having the longest average time.
1st place: Full credit on the performance section toward the overall score
Last place: Lose 10 points
Those in between successively lose points up to the 10 lost in last place.

III Post-lab

Sketch the design of your parachute.
 
 
 
 

Draw a free-body diagram of your parachute falling through the air.  Include and label all appropriate force vectors.
 
 
 
 
 

List five variables regarding the parachute that you manipulated (or could have) in the design process.  Also, (where applicable) label these in the diagram above.
1)
 

2)
 

3)
 

4)
 

5)
 

In your opinion, which variable(s) turned out to be the most important in the design of an effective parachute).  (Base your answer on all the parachutes you observed, not merely your own attempt.)
 
 
 
 
 
 

Describe one design that was rejected and explain why you rejected it.
 
 
 


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