I have redone the example of the water bottle available in (https://www.youtube.com/watch?v=r2Xdh5LT934&feature=youtu.be). My graph was ok in the as can be seen in figure 1. But, when I perform the calculation, there is no result about impacts (Figure 2). What would I be doing wrong? I am thankful for your attention. Regina
It is hard to tell from the information provided, but the YouTube video might be a bit outdated. An updated version of the water bottle tutorial can be found on our website or here.