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Finding rocket's distance at various angles after launch  TOPIC_SOLVED

Hi, I'm new here but I haven't been in school for many years and recently I've been trying to remember some trig. Something I find strange is plotting angles and calculating distances with known values. I was hoping someone could help me remember, or rather, re-educate me on the following. I've atta...
by JDC
on Mon Nov 25, 2013 2:56 am
 
Forum: Trigonometry
Topic: Finding rocket's distance at various angles after launch
Replies: 19
Views: 3882

Re: Finding rocket's distance at various angles after launch  TOPIC_SOLVED

Great, thanks, I'm not sure what Tangent is, I've seen it many times but never had to use it. I'll look it up, thanks for your help.
by JDC
on Mon Nov 25, 2013 12:46 pm
 
Forum: Trigonometry
Topic: Finding rocket's distance at various angles after launch
Replies: 19
Views: 3882

Re: Finding rocket's distance at various angles after launch  TOPIC_SOLVED

Thanks for posting the response, I had a read, but perhaps I need more info? Lets say I know 1) The distance between the Rocket and the Observer 2) I know the Angle of the Rocket 3) I know the angle of the observer. How do I calculate the horizontal distance where the angles meet? I don't care to de...
by JDC
on Tue Nov 26, 2013 1:35 am
 
Forum: Trigonometry
Topic: Finding rocket's distance at various angles after launch
Replies: 19
Views: 3882

Re: Finding rocket's distance at various angles after launch  TOPIC_SOLVED

I suppose it isn't but I noticed that since it was 45 degrees you mentioned h was the same... and I didn't want to assume anything. I'm trying to work the formula out on Excel right now, so if you had any time to reply with an example input values and the functions to use that would help me most. I ...
by JDC
on Tue Nov 26, 2013 2:30 am
 
Forum: Trigonometry
Topic: Finding rocket's distance at various angles after launch
Replies: 19
Views: 3882

Re: Finding rocket's distance at various angles after launch  TOPIC_SOLVED

Ok, so what I do know are the three angles and the distance along the bottom.

With those 4 items (3 angles and length across the bottom) are you saying I need to first solve for the height/alt then I can determine the length of each triangle?
by JDC
on Tue Nov 26, 2013 3:13 pm
 
Forum: Trigonometry
Topic: Finding rocket's distance at various angles after launch
Replies: 19
Views: 3882

Re: Finding rocket's distance at various angles after launch  TOPIC_SOLVED

Ok, I'll try...

I found this site, I'm not sure if I'm suppose to use Radians or Degrees. I assume degrees?

http://www.rapidtables.com/calc/math/Tan_Calculator.htm
by JDC
on Tue Nov 26, 2013 11:17 pm
 
Forum: Trigonometry
Topic: Finding rocket's distance at various angles after launch
Replies: 19
Views: 3882

Re: Finding rocket's distance at various angles after launch  TOPIC_SOLVED

Does this sound right so far?

tan(45)=1
150*1=150

tan(10) = .176327
150*.176327 = 26.44905

150-26.44905 = 123.551

am I even close?
by JDC
on Tue Nov 26, 2013 11:49 pm
 
Forum: Trigonometry
Topic: Finding rocket's distance at various angles after launch
Replies: 19
Views: 3882

Re: Finding rocket's distance at various angles after launch  TOPIC_SOLVED

Ok, when I use excel for TAN(10) I get 0.176327

So, if you're saying that "h/(150-h)" needs to equal the same then I'm not sure how to formulate that.

I don't know the formula, but, by deduction it's about "22.4845"

How do I get 22.5?
by JDC
on Wed Nov 27, 2013 1:22 am
 
Forum: Trigonometry
Topic: Finding rocket's distance at various angles after launch
Replies: 19
Views: 3882

Re: Finding rocket's distance at various angles after launch  TOPIC_SOLVED

Ok, I figured it out finally! :) I just created a SpreadSheet and found all the formulas 1 at a time... Thanks for helping, I think you might have left out a critical piece re:SinA, once I read about that it all made sense :) In the spreadsheet, it only requires A, B and c http://s29.postimg.org/626...
by JDC
on Wed Nov 27, 2013 3:32 am
 
Forum: Trigonometry
Topic: Finding rocket's distance at various angles after launch
Replies: 19
Views: 3882
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