Today in AP Physics B, we whiteboarded problems focused on fluids in motion; specifically, the equation of continuity and Bernoulli’s equation. A running joke in AP Physics B is that any problem can be extended into a projectile motion problem. The students extended this problem to involve me shoving another teacher into the swimming pool that was being filled. This evolved into asking how weak would the force of gravity need to be in order for the pool to be filled by the time the other teacher hits the water. I joked that I would share their question with the College Board.