Day 81: Momentum-Impulse IFF Diagrams

This year we are trying a new graphical representation for the momentum transfer model: IFF charts. Kelly O’Shea has described them in detail on her blog. Students have readily adopted them and appreciate the similarity between LOL diagrams and these IFF charts. I have observed that students are much less likely to make mistakes regarding the direction (and signs) of velocity when using the IFF charts.


  ##mtm ##whiteboarding  

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