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Inquiry: Terminal Velocity of Cats

Purpose: To find the terminal velocity of different densities of cats.

Procedure:

You will drop three cats of different masses (black, red, and blue) two times at each 0.5 mark on the string.

Use the Photogate Timing Mode from the Data Studio Program and enter 0.1 m for the distance between the gates.

Under Setup, checkmark only "velocity between gates"

Since V_{f}^{2} = 2ad you need to make a graph of V^{2} vs. 2d to get gravity for our slope. Using a Spreadsheet we can graph all three cats on the same graph.

We also need to enter a fourth graph that will represent no air resistance.

After all three classes have entered their "cat" data into the spreadsheet you can File-Make a Copy of the data for yourself by clicking here: Terminal Cats Spreadsheet

Inquiry Questions:

Print out one terminal velocity graph which contains all three cats and a standard no air-resistance line. Explain the graph. Do heavier objects fall faster or does it depend on the situation?

If we THREW a cat down from our highest height in this inquiry with an initial velocity of 10.0 m/s and we assumed no air resistance what would be the impact speed of the cat?