alleryStart learning →In the seesaw analysis, the distances used are measured to points directly below each child's:
AOutstretched hand
BCenter of gravity
CHighest point
DNearest shoulder
Answer & Solution
Correct answer: B. Center of gravity
1. A body's weight can be treated as acting at one point.
2. The seesaw distances are not an approximation.
3. They are the distances to points directly below the center of gravity of each child.
4. Treating weight as acting there makes the torque balance exact.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 9 'Statics and Torque', sections 9.1-9.5_
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