This was asked in the online test. Why is the d option incorrect?

Asked by Kim | 17th Oct, 2013, 06:46: PM

Expert Answer:

Torque is given as ? = rF
 
Now, there are two equal and opposite forces acting on the spool.
 
Thus, the net torque is
 
? = rF + (-rF) = 0

Answered by Romal Bhansali | 17th Oct, 2013, 07:18: PM

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