alleryFor a lever, load arm times load equals effort arm times:
ATorque
BEffort
CMass
DHeight
Answer & Solution
Correct answer: B. Effort
1. Moments about the fulcrum must balance.
2. Each moment is force times its arm.
3. So load arm times load equals effort arm times effort.
_Source: syllabus Physics Part I, Chapter 7, Systems of Particles and Rotational Motion._
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