VCE Physical Education Practice Questions - VCE Physical Education Assessment

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During a triceps extension at the elbow while holding a dumbbell overhead, which lever class is operating and what is its mechanical advantage?

First-class lever with a mechanical advantage that can be greater than, equal to, or less than 1 depending on relative arm lengths. Second-class lever with a mechanical advantage always greater than 1. Third-class lever with a mechanical advantage always less than 1. First-class lever with a mechanical advantage always greater than 1.

Correct Answer:

First-class lever with a mechanical advantage that can be greater than, equal to, or less than 1 depending on relative arm lengths.

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