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First penny is gently nudged off the table edge

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Balance one penny on the edge of a table. Place your index on a second penny, then flick the second penny so that it travels off the table, while the first penny is gently nudged off the table edge.

1. Predict which penny will land first, the penny moving horizontally, or the one that simply drops off the table. Explain.

2. Perform the investigation, listening for the sound of the pennies as they land. Was your prediction supported or refuted?

3. You may believe the pennies landed just a little bit apart from each other. Try it a few times. Does one always land before the other?

4. What will happen if you increase the speed of the second penny? Predict and then give it a try.

5. What if you increase the height from which the pennies are dropped?

6. Based on your observations, does the horizontal speed of the flicked penny affect the impact times of the pennies?

7. What can you then say about the time to hit the floor for each penny?

Reference no: EM131657702

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