Recent content by jzhu

  1. J

    Example Problem in the book, why is tension ignored?

    Ok, thanks!
  2. J

    Example Problem in the book, why is tension ignored?

    Hm, I just solved it using t = Ia with the 2 forces. So does does mean that dl/dt can only be used from an inertial frame of reference? Or do dl/dt = ia?
  3. J

    Example Problem in the book, why is tension ignored?

    Homework Statement An Atwood machine consists of two masses, M and m, which are connected by an inelastic cord of negligible mass that passes over a pulley. If the pulley has radius R and moment of inertia I about its axle, determine the acceleration of the masses M and m. Homework Equations...
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