11.21.17
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Nothing better to do during a school-wide
power outage than stack bowling balls.
7 bowling balls and 2 apples!!

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Ben on a rope in the gymnasium.

 


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Mr. Debbink demonstrates the forces on an incline.


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This two pulley system has a mechanical
advantage of nearly 2 allowing one student
to be lifted with relative ease.

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Doug on rope

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Daniel is easy to lift when using a 4 pulley system


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