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Air Drag

  • Thread starter Crebble32
  • Start date
  • #1
7
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Calculate velocity of the skydiver of mass M= 80kg as a function of time. The air drag coefficient D= 100g/m = 0.1kg/m. Assume that the skydiver has v=o at t=0.


In my book high speed air drag is f=Dv^2.
I found Vt= 88.5 m/s with Sqrt(mg/D). BUT this is not the V they are asking for :(

my book derives the formula for V with the low speed air drag, not the HIGH speed one. I can't follow the steps they did and figure out what exactly the formula actually is! What I started out with is:

m*(dv/dt) = mg- Dv^2

I have no clue where to go from here :( If anyone could help me I appreciate any help I can get!

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #3
7
0
Thank you so much!
 

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