Which of these is false about torque

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SUMMARY

The discussion centers on the properties of torque, specifically evaluating three statements to identify which is false. Statement 1, claiming that torque is 0 unless the force is perpendicular to the moment arm, is incorrect. Torque can exist even when the force is applied at an angle, as demonstrated by the example of a force at a 45-degree angle. Statement 2, which asserts that torque can only be produced by a force, is true, and statement 3 correctly states that torque can be clockwise (cw) or counterclockwise (ccw) based on the direction of the applied force.

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  • Familiarity with the definition and calculation of torque
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  • Study the mathematical formula for torque, τ = r × F, where r is the moment arm and F is the force
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This discussion is beneficial for physics students, mechanical engineers, and anyone interested in understanding the principles of torque and its applications in real-world scenarios.

solars
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Which of these is false about torque:
1) torque is 0 unless the force is pointed perpendicular to the moment arm
2) it can only be prodcued by a force
3) torque may pt cw or ccw, depending on direction the force points


I don't know which one of these is false. They all seem pretty true to be, although I suspect #2.
 
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think about it, what if the force is at a 45 degree angle to the moment arm? Would the torque be 0 in that case?
 


cryptoguy said:
think about it, what if the force is at a 45 degree angle to the moment arm? Would the torque be 0 in that case?

No. Oh I see so choice 1 is wrong! Thanks!
 

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