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To celebrate the end of mechanics in my physics classes, students put it all together in one final problem that incorporates a little bit of everything! The ScenarioA 0.2-kg steel ball is launched by a 115 N/m spring compressed by 0.2 m. It rolls frictionlessly through a loop with a radius of 0.38 m and into a 0.15-kg box. The box catches the ball and immediately starts sliding on a portion of the table with a coefficient of friction of 0.527. After sliding for 0.5 meters, the ball and box launch horizontally off the 1.15-m tall table.  If you want a way to share this animation without sending students to this website, I loaded it to a the most boring Google Site ever :)
Content CoveredThis huge problem covers a little bit of everything in mechanics:
HintsOne of the biggest challenges for students with a problem like this is making connections and identify what strategies to use where. In an effort to assist without doing the problem for them, I developed a list of hints.
FilesI printed this as a double-sided packet that students could rip off the first page and have the diagram and scenario visible at all times
I was really proud of making this animation entirely on Microsoft Powerpoint. If you are interested in seeing the magic or want to tweak the inputs, here is the editable animation file
Click here for more resources ↓
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Joe CossetteFather, Physics Teacher, Knowles Fellow, Friend, Techie, and Musician Blog Posts |
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