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Homework Help: Calculating force of friction with torque, rotational inertia and angular accel

  1. Nov 13, 2011 #1
    1. The problem statement, all variables and given/known data

    I have a plot whose vertical intercept is 0.00352 [Nm]
    If the bearings are 2 [mm] from the center of the wheel,
    then what is the force of friction?
    Use three significant figures for your answer in Newtons.

    2. Relevant equations

    Torque= (Rotational Inertia)(Angular Acceleration)+ Torque due to friction

    3. The attempt at a solution
    Torque due to friction = (Rotational Inertia)(Angular Acceleration) - Torque
    Tf= (I)*(A)-0.00352Nm

    I don't even know how to attempt to solve for those other variables. Is this even the right equation to use?
  2. jcsd
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