Today we talked about centrifugal force, which isn't a real force but rather a result of a rotating reference frame. This topic won't be tested, but it's pretty fun to think about and demonstrate.
Some videos we watched:
2001: A Space Odyssey Clip
NASA Centrifuge Gravity Simulator Test
We may have also talked about some conceptual consequences of the equation for centripetal acceleration and centripetal force, such as why people cut corners in their cars or why rollercoaster loops are not actually round (they're a sort of upside down raindrop shape).
Any leftover time was spent working on tonight's suggested homework: p. 228 #26 & 30
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