Torque multiple choice question needing explanation

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Homework Help Overview

The discussion revolves around a multiple-choice question regarding the concept of torque, specifically how the distance from a pivot point affects the torque produced by forces of equal magnitude acting on an object. Participants are exploring the implications of the torque equation T = r x F.

Discussion Character

  • Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • The original poster attempts to reason through the relationship between distance and torque, expressing confusion over the correct answer to the question. Some participants question the interpretation of the torque equation as a vector cross-product rather than a simple multiplication.

Discussion Status

The discussion is active, with participants engaging in clarifying the nature of the torque equation. Guidance has been offered regarding the vector nature of torque, which seems to have aided the original poster's understanding.

Contextual Notes

The original poster expresses concern that the question may be misleading, indicating a potential ambiguity in the problem setup or wording.

wolk
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Homework Statement



If two forces of equal magnitude act on an object that is hinged at a pivot, the force acting farther from the pivot must produce the greater torque about the pivot.

a. False
b. unable to decide without knowing shape of object
c. True

Homework Equations



T=rxF


The Attempt at a Solution



My logic told me that a greater distance r from the point of rotation equals a greater torque. The above equation makes this obvious. So I selected true and got marked incorrect, the answer is false. I feel that I was right or the question is misleading at best. Anyone care to weigh in?

thanks.
 
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The expression "r x F" is not simply "distance multiplied times force". Do you see what the difference is?
 
uh, Obviously not. Does it have to do with it being a vector cross-product equation?
 
I think I get it now. Thank you for your generous and abundant guidance.
 

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