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A Thin,massless String Is Wrapped Around a 0

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A thin,massless string is wrapped around a 0.25m radius grindstone supported by bearings that produce negligible frictional torque.A steady tension of 20 N in the string causes the grindstone to move from rest to a speed of 60 rad/s in 12s.The moment of inertia of the grindstone is A thin,massless string is wrapped around a 0.25m radius grindstone supported by bearings that produce negligible frictional torque.A steady tension of 20 N in the string causes the grindstone to move from rest to a speed of 60 rad/s in 12s.The moment of inertia of the grindstone is   A) 1.0 kg · m<sup>2 </sup> B) 2.0 kg · m<sup>2 </sup> C) 3.0 kg · m<sup>2 </sup> D) 4.0 kg · m<sup>2 </sup> E) 5.0 kg · m<sup>2 </sup>


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Budgeting Process

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