- #1
Nick tringali
- 71
- 13
Homework Statement
So far i know that the uncertainty of the force of friction is +/- 0.1 and the uncertainty of the force normal is +/- 0.1 also.
Homework Equations
Force of friction=(myoo)(force normal)
Myoo= force friction / force normal
The Attempt at a Solution
My data is
Force of friction | myoo | fnormal
0.0 | 0.0 | 0.0
1.4 | 0.264 | 5.3
1.9 | 0.260 | 7.3
3.2 | 0.262 | 12.2
4.1 | 0.272 | 15.1
4.6 | 0.269 | 17.1
Thats my calculated data so first I added 0.1 to1.4 and got 1.5 then I added 0.1 to 5.3 and got 5.4 then divided 1.5/5.4 and got 0.27777 (which is my max myoo value) now to get the min value I subtracted 0.1 from 1.4 and 5.3 and divided again 1.3/5.2 and got .25 for the min myoo value then i subtracter 0.27777 from 0.25 and got my uncertainty to be 0.0277, the problem is i tryed the same prossess with another set of values from my data table and got a different uncertainty. For the last set of numbers with frictonal force of 4.6 i got the uncerntanty to be 0.00855 (i did the same process as before) All of my class mates are doing different ways.