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**1. Homework Statement**

**2. Homework Equations**

tao=Tc/J

theta=TL/JG

**3. The Attempt at a Solution**

I got the torque of the motor as 210,085lb-in

Then I converted the 4* to .698 rad

From there I plugged it into the equations. I solved for T from tao=Tc/J then plugged that T into the theta=TLJG and put everything else in there.

When I did that I got a diameter of 3.44" or 1.72" radius. I don't get what I'm doing wrong?