Day 23: Acceleration at v=0


Practice 1 in my CAPM packet (mostly if not all stolen from Kelly O’Shea) has this problem, which asks students to find the acceleration at 4 seconds, where velocity is zero. All three groups that presented this (in three classes) correctly wrote that the acceleration was 2 m/s/s. However, in two of the classes someone brought up that it would be zero as velocity was zero, and in a third class I prompted that question. Serious debate ensued. Lots of back and forth, lots of awesome arguments, lots of learning.



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