Part 1: Force Diagrams
Draw a force diagram for a frictionless cart moving away from the sensor at a constant speed.
Draw a force diagram for a frictionless cart moving away from the sensor at a decreasing speed. The fan is on and your hand is pushing on the cart in the opposite direction of the fan to slow it down.
Part 2: The Scientific Method
Scientists use the scientific method to ask (and sometimes even answer!) questions about the world. To help you understand a little more about the scientific method, please define the following terms in your own words. Please don’t just cut and paste from Google.