1. The problem statement, all variables and given/known data Hey there, I need some help with uncertainties and how to find the speed of a moving object. I have tried to solve the problem several times but my answer seems to be wrong. Formula for speed : v=d/t My uncertainties: 0.5cm (distance) and 0.5s for time. The uncertainties were measured with the same analog. I did the experiment 15 times and got different speed result of the object each time. The total sum of the speeds ( 15 trials) was 44.99s. The average of that is 2.99 (15/44.99) Oh and my measuring device was 228cm long (exact) I need to find out the speed and the uncertainties If I missed any detail please please let me know PLEASE HELP!!! I'am very frustrated right now..=S 2. Relevant equations Formula to use : v=d/t 3. The attempt at a solution v=d/t = (228 +\- 0.5)m/(2.99+\- 0.5)s 228 divided by 0.5 = 456% 2.99 divided by 0.5= 5.78% 456% +5.78%=461.98% so now 461.98% * 76.2 ( which I got by diving 288 and 2.99) my final answer was v=76.25m? +\- 39%.. I'am confused..