Blocks on turntable with friction = hard problem

AI Thread Summary
The discussion revolves around a physics problem involving two blocks on a spinning turntable, focusing on calculating the maximum angular frequency to prevent sliding and the tension in the connecting string. The maximum angular frequency determined is 12.4 rad/s, but there are discrepancies in the calculations for part B regarding the tension in the string when the blocks have a mass of 34 g each. Participants are encouraged to share their calculations and methodologies to clarify the confusion. The problem highlights the complexities of friction and tension in a rotating system. Assistance is sought to resolve the conflicting answers for part A and to correctly compute part B.
yopy
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Two identical blocks are tied together with a string and placed along the same radius of a turntable that is spinning about its center. The inner block is 4 cm from the center and the outer block is 5 cm from the center. The coefficient of static friction between the turntable and the blocks is µs = 0.71, and the string is taut.

a) What is the maximum angular frequency such that neither block slides?

b) Now suppose that the blocks each have a mass m = 34 g. For the value of w you just found, what is the tension in the string?

i worked on part A for a long time and found the answer to be 12.4 rad / s

i am having problems calculating part B, can anyone point me in the right direction, thanks
 
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I get a different answer for part a).

Perhaps you can show your work?
 

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