experiment 7

Hypothesis: The rod will shoot out but the cart won't move that much.
Trial 1- Cart move backwards the rod shoot out.
Trial 2- Cart move backward rod shoot out.
Trial 3- Cart move backward rod shoot out.
1. Rod went upward and the cart went backward.
2. External force for rod & cart.
3. No our hypothesis was not correct.
Materials- Rod Rubber band Halls Cart
Procedure:1. Find an open area on a smooth surface (preferably a table).
2. Attach one end of the rubber band to the hole in the front of the cart with a paper clip.
3. Pull the steel rod back in the rubber band(creating a "slingshot" effect) until there is good tension on the rubber band.
4. Hold the cart and the rubber band and the rod in place with one hand.
5. Release both the cart and the rod at the same time.
6. Repeat several times and record in your note book.
pic=coming soon