Physics Torque and Rotation

Physics
Tutor: None Selected Time limit: 1 Day

A combination lock has a 1.3-

cm-diameter knob that is part of the dial you turn to unlock the lock. To turn that knob, you grip it between your thumb and forefinger with a force of 4.0 N as you twist your wrist. Suppose the coefficient of static friction between the knob and your fingers is  0.75.

A) What is the most torque you can exert on the knob without having it slip between your fingers?

Nov 13th, 2015

Thank you for the opportunity to help you with your question!

max torque is 0.0195 Nm

see picture

Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 13th, 2015

I don't think this answer is correct I am doing my homework online and this answer is coming out incorrect.

Nov 13th, 2015

Can you please, send me a proper measure for diameter (maybe inch instead of cm ...),


Nov 13th, 2015

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Nov 13th, 2015
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Nov 13th, 2015
Dec 4th, 2016
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