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The girl is using her arm to lift a weight. Her arm is acting as a _______.
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The girl is using her arm to lift a weight. Her arm is acting as a _______.

User Carljohan
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A pulley a wheel with a grooved rim around which a cord passes, which acts to change the direction of a force applied to the cord and is used to raise heavy weights.

So, the answer is a Pulley.

I hope this helps!
User Glueon
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