We summarized all four models today in the middle of class. It a good way to realize we have four tools in our tool belt and that we have choices in the ways we look at problems. We will be looking at projectiles and circular motion next.
Before summarizing, we analyzed a ballistic pendulum. A few groups stopped when they found a velocity, thinking that any velocity must be the velocity they want.
After summarizing, we looked at different types of collisions. When would the kinetic energy be conserved in a collision?