2) You take the following measurements for the distance a toy car travels in 10 seconds during each 5 trials: 157cm, 175cm, 162cm, 168cm, 187cm. What are the relative uncertainties of the distance and time measurements? Which measurement is the most uncertain?
this is what I have done;
10/157cm *100 = 6.37% <-Most Uncertain!
10/175cm *100 = 5.71%
10/162cm *100 = 6.17%
10/168cm *100 = 5.95%
10/187cm *100 = 5.34%
3) Calculate the average speed of the toy car. use the weakest link rule to determine the uncertainty in the speed.
this one I did not understand and I truly need help