Day 38: An Experiment to Explore an AssumptionPosted: October 25, 2013
Today Ben walked into my office with an assumption that students were making. They were working on problem 1c from Practice 1 in this packet, where a concrete block is being pushed with a hand, and there assumption was that the block sped up instantaneously and then moved at a constant velocity while the hand pushed. So Ben and I went back to the classroom and recorded a high speed video of a box being pushed, and the results above are pretty convincing that the box sped up. We want to make a better video with a large, heavy box, but this worked for the time being.