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Introductory Physics Homework Help
Torque, rotational inertia and angular acceleartion
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[QUOTE="urbano, post: 4535729, member: 452318"] [h2]Homework Statement [/h2] In order to link these into a logical sequence, how do they fit together [h2]Homework Equations[/h2] I = rotational inertia a = angular acceleration (I know a different symbol is usually used) τ= force x moment arm distance [h2]The Attempt at a Solution[/h2] so...to get my head around how these interact Torque is the amount of rotational force applied to a body. rotational inertia is how much the body will resist this force angular acceleration is how dpenedne ton these two. [B]Situation one. [/B] If I applied 5Nm of torque to a body that had a rotational inertia greater than this then the body wouldn't move and its angular acceleration would be 0 [B]Situation two. [/B] If I applied 5Nm of torque to a body that had a rotational inertia less than this then the body would move BUTwhat if it moves at a constant velocity and doesn't accelerate ? It still has 0 acceleration but is moving ? I unsure how torque can length of moment arm x force AND moment of inertia x angular acceleration if there is is 0 angular acceleration then moment of inertia x 0 = 0 so ther eis 0 Torque but if I'm applying 5Nm of toruqe how can there be 0 torque ? I must have missed something fundamental somewhere [/QUOTE]
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Introductory Physics Homework Help
Torque, rotational inertia and angular acceleartion
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