Jackass Forever's trailer was released recently. It will arrive in October. This is the next Jackass movie in the series in which Johnny Knoxville and Steve-O do some very stupid stuff. These guys aren’t exactly young, but that doesn’t stop them. It might be funny, but it is not the end of the world.We might as well make the most out of the stunts they've already performed. Let's start with the trailer where Knoxville is seen being shot from a cannon while wearing wings like he could fly. (Hint, he can't. He lands in a lake, but don't worry. Although it is absurd to shoot yourself from a cannon at yourself, it does provide some fascinating physics questions.Video AnalysisI will start with data. Video analysis can be used to find Knoxville's position and time in every frame. Tracker Video Analysis is my favorite. There are many ways to accomplish this. It's also free.There are many issues that must be addressed. I must determine the size and location of objects in the background. This is even with Knoxville's launch from the cannon. Tracker Video Analysis is a great tool to help me determine the origin. However, I also need to know the exact size of any object that we can see in the video. I believe that they are using the same cannon as Dave Smith, a well-known human cannonball performer. It's identical and has a length of 35 feet. I'm going to stick with it.After moving the reference frame and setting it up, I can mark Knoxville's location to obtain all the data. Here's a plot showing his horizontal-position as an expression of time.Illustration: Rhett AllainI also have a plot showing his vertical position as an indicator of time.
