Is the Torque Calculation in the Picture Correct?

AI Thread Summary
The torque calculation in the provided image is questioned due to the assertion that all joints are torque-free. Despite this concern, some participants believe the calculation is accurate. The discussion highlights a potential conflict between theoretical learning and practical application in torque calculations. The validity of the calculation remains a point of contention among contributors. Overall, the debate centers on the interpretation of torque-free conditions in relation to global power calculations.
Lorens
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Is the calculation in the Picture incorrect? The reason I believe so is that all the joints are torque free, but then I have been learned in school that you always can calculate the global powers in that way

http://img74.imageshack.us/img74/5212/confused0yi.jpg
 
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Yes, looks correct to me.
 

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