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How do you find the last two?
A 1.2kg bike wheel, is spinning 210rpm clockwise when a student applies a frictional force as shown. The moment of inertia of any ring (such as the bike tire, neglecting the spokes) is I = mr?. Answer all questions realtive to the center of the wheel. What is the initial angular speed (in selectable units)? 22 rad/s How much torque does the friction cause? 1.32 N m What is the moment of inertia? 0.3 kg m2 What is the angular acceleration? 4.42 rad/s? How long will the wheel take to stop spinning? 4.98 How far will the wheel rotate before stopping? 164.4 rad revolutions 10cm 2.65N
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Transcribed Image Text:A 1.2kg bike wheel, is spinning 210rpm clockwise when a student applies a frictional force as shown. The moment of inertia of any ring (such as the bike tire, neglecting the spokes) is I = mr?. Answer all questions realtive to the center of the wheel. What is the initial angular speed (in selectable units)? 22 rad/s How much torque does the friction cause? 1.32 N m What is the moment of inertia? 0.3 kg m2 What is the angular acceleration? 4.42 rad/s? How long will the wheel take to stop spinning? 4.98 How far will the wheel rotate before stopping? 164.4 rad revolutions 10cm 2.65N
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