MECHANICS - NEWTON'S THIRD LAW - ACTION AND REACTION NC State University Faculty Access

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Push Me Pull Me Carts
# 1H10.10


Description: This demo really gets the students involved in a common physics problem involving Newton's Third Law.

Instructions: Have two students stand on the carts and grasp the ends of the rope provided. Have only one student at a time pull on the rope and observe that they both move. Use the long stick for pushing.

Hazards: Make sure your students are comfortable standing on the carts, as they could fall off.

Parts: two floor carts (or skateboards)
a long-ish piece of rope
a segment of PVC tubing
a medicine ball (if requested)

Purchased/Built: built

Setup Time: none

Quant. in Demo Room: 1

Demo References
Freier and Anderson Mg-5b People on two identical roller carts pull each other with a long rope.

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