Error calculation

  • Thread starter Awsom Guy
  • Start date
  • #1
77
0

Main Question or Discussion Point

Hello everybody,
I have a quick question:
Using this equation I can calculate centripetal force:
F_c=4πmr/T^2

If I say m=0.100, r=0.60, 1/t^2=1.43
Then how do I calculate the errors for F_c.
Any help is some help.
Thanks
 

Answers and Replies

  • #2
96
0
Hello everybody,
I have a quick question:
Using this equation I can calculate centripetal force:
F_c=4πmr/T^2

If I say m=0.100, r=0.60, 1/t^2=1.43
Then how do I calculate the errors for F_c.
Any help is some help.
Thanks
You need to do is error propagation. Wiki may be good place to look it up:

http://en.wikipedia.org/wiki/Propagation_of_uncertainty
 
  • #3
5,601
39
Lots of different ways to calculate different errors.

To get extremes, you can plug in error variations for each variable that lead to an increase in your function, and alternatively, others that lead to a minimum of that function. By groups those extremes, you get an idea of the "accuracy" of your answer, the range of extreme variations.

Of course the chance (probability) that your errors will occur just that way is not as large as those errors occuring in a random way and partially cancelling....
 

Related Threads on Error calculation

  • Last Post
Replies
6
Views
1K
  • Last Post
Replies
3
Views
728
  • Last Post
Replies
3
Views
6K
Replies
2
Views
2K
Replies
6
Views
2K
Replies
3
Views
2K
Replies
6
Views
3K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
3
Views
4K
Top