torque

[CalcQuest]

Torque is killing me. I saw this exact same question posted on several explanation sites and all of them did what I felt was a horrible job of explaining the solution. Feel free to answer the problem the assignment it came from has closed. Please explain step by step and try not to skip anything like Im suppose to know what happened or you will lose me

A wrench 0.7 meters long lies along the positive [FONT=MathJax_Math-italic]y[/FONT]-axis, and grips a bolt at the origin. A force is applied in the direction of [FONT=MathJax_Main]⟨[FONT=MathJax_Main]0[/FONT][FONT=MathJax_Main],[/FONT][FONT=MathJax_Main]−[/FONT][FONT=MathJax_Main]2[/FONT][FONT=MathJax_Main],[/FONT][FONT=MathJax_Main]4[/FONT][FONT=MathJax_Main]⟩[/FONT][/FONT]at the end of the wrench. Find the magnitude of the force in newtons needed to supply 100 newton-meters of torque to the bolt.

Thank you

 

[Deleted member 4993]

Torque is killing me. I saw this exact same question posted on several explanation sites and all of them did what I felt was a horrible job of explaining the solution. Feel free to answer the problem the assignment it came from has closed. Please explain step by step and try not to skip anything like Im suppose to know what happened or you will lose me

A wrench 0.7 meters long lies along the positive [FONT=MathJax_Math-italic]y[/FONT]-axis, and grips a bolt at the origin. A force is applied in the direction of [FONT=MathJax_Main]⟨[FONT=MathJax_Main]0[/FONT][FONT=MathJax_Main],[/FONT][FONT=MathJax_Main]−[/FONT][FONT=MathJax_Main]2[/FONT][FONT=MathJax_Main],[/FONT][FONT=MathJax_Main]4[/FONT][FONT=MathJax_Main]⟩[/FONT][/FONT]at the end of the wrench. Find the magnitude of the force in newtons needed to supply 100 newton-meters of torque to the bolt.

Thank you

Well then let's clear-up some definitions:

Do you know:

What is a wrench?

the definition of x, y and z axis? What are the relationships among these axes?

the definition of force in mechanics?

the definition of torque in mechanics?

how does a wrench apply torque?

what is a unit vector?

what is cross-product of two vectors? How do you calculate the cross-product of two vectors?

To quote you (almost!)

Feel free to answer the above questions. Please explain step by step and try not to skip anything like "we should know that you know".