Adam went to the trouble of throwing a ball up into the air in his office. The ball not only went up; it came back down. Here’s video of the event:

(It’s also available on YouTube, here.)

You can study this motion in a variety of ways. In another video example, I suggest that you analyze the frames while using some kind of timing device. That could work here, especially if you can advance the video one frame at a time. Another way of doing this is with some video tracking software, such as JS Track, available online as a web based application. To use this, do the following, OR take a look at this video I made showing you the steps I use.

1. Download the video that I’ve provided above; or, you can record your own!
2. In JS Track, you’ll be prompted to upload the video file there. It’s best if the video is in mp4 format. That’s pretty natural for a lot of videos you record, but sometimes you’ll want to find a way to convert it by doing a quick search on the internet.
3. Within JS Track, you can advance the video one frame at a time, starting with the first frame that’s of interest. I usually start with when the ball first leaves my hand. Then, you can leave a mark or point on your object (the red ball, in this case), and then the program will advance the video one frame. If you keep repeating this, you can get a collection of points.
4. JS Track will then provide you with a bunch of position and time data, just like we created with rolling motion in class. It has a spreadsheet you can use if you download a copy and edit it for your own use, either in Google Sheets or Excel or something similar.

There’s more to talk about, but that’s exactly what the point of this assignment could be!