The price of an easier lift

Connect three kinds of mechanical advantage, then discover why an arm often works at a force disadvantage.

1. 01

   Pull more rope

   Compare one supporting segment with two. Measure rise and effort together.

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2. 02

   Trade speed for turning force

   Connect gear ratio with the same work trade-off.

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3. 03

   Look inside a hold

   Bring the hand load closer to the elbow. Discover how moment arms change internal forces.

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Take these steps at your own pace. Your place is not saved as account progress or scored.