1. Directions You should share two tracks snapped together with another group. Always set cart down upside down when not in use Motion sensor should be on the top of the ramp, don’t let the car run off the track Connect the motion sensor then select activity “03 velocityCF.ds” Collect data of car moving down ramp, make sure that the data you collect seems good, data that you would expect to get.

2. What you need to turn in Copy of your position vs. time lab labeled as described on following slide Print out of your position vs. time graph after you have straightened it(use worksheet we used to straighten lines). Write relationship between position and time. Copy of velocity vs. time graph. Use this graph (straight line) to derive the relationship between velocity and time. You need to write an equation.

3. What you need to turn in Print out of your displacement vs. time graph, (no data table) – Label where you let go, label where you stopped the cart – Using Graphical Methods-Summary wkst, determine how to turn your data into a straight line – Highlight the “good data” in the displays pane on the left of the screen, drag “table” and drop it onto “run 1” you should get the data. Use this data to create a straightened graph. Use Datastudio (unplug sensors, save your data, restart data studio and pick enter data) or Excel to determine the relationship between position and time. You will need to use your data and your Graphical Methods-Summary wkst., to find this relationship. You should use k as the constant that represents slope (this equation is not as simple as it may seem). Write this relationship on your graph. Use the velocity vs. time graph to determine the equation that characterizes the motion of your cart with regards to velocity vs. time. (Find the equation like we have been doing)