alleryStart learning →The distance used in a torque calculation is described as the perpendicular distance from the pivot to:
AThe centre of mass
BThe far end of the object
CThe point of maximum speed
DThe line of action
Answer & Solution
Correct answer: D. The line of action
1. Torque uses a very particular distance.
2. The distance in the torque expression is a perpendicular distance.
3. It is measured from the pivot to the line of action of the force.
4. That is the same as the perpendicular lever arm.
_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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