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Because the wood is between the rock and the log.

The wood is force, the rock is resistance and the log is fulcrum so it's a third class lever

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Wiki User

13y ago
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AnswerBot

5mo ago

The moving rock with a board and log is an example of a simple machine called a lever. In this case, it likely represents a first-class lever, where the rock acts as the fulcrum, the board is the lever arm, and the log provides the effort to lift or move the load.

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Q: What lever is a moving rock with a board and log?
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