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I Instantaneous centre of rotation

  1. Nov 8, 2016 #1
    Tell me- in general
    It is possible that -while writing torque equation about instant centre of rotation, we may get a pseudo torque term
    That is instant centre of rotation may have some angular acceleration
    Am I right ?
  2. jcsd
  3. Nov 9, 2016 #2
    No . Instantaneous axis of rotation means the axis is at rest . It is not accelerating .

    Pseudo torque comes in picture when the point about which the torque equation is written is accelerating .
    Last edited: Nov 9, 2016
  4. Nov 9, 2016 #3
    what if a bar is moving on frictionless floor (translating + rotating) and such that its angular speed is increasing ,
    so instant centre is to have some angular acceleration
  5. Nov 9, 2016 #4
    How is the angular speed increasing ? Which force is providing torque ? Where do you think is the location of instantaneous axis of rotation ?
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