Recent content by Arkun

  1. Arkun

    How do I use the parallel axis theorem for moment of inertia in this homework?

    Sorry about that. Yeah, I had no idea what I was doing with that. I guess I still don't know how to figure out the center of mass for this bent rod and use it in the appropriate moment of inertia equation. In my second attempt, I applied the parallel axis theorem to each segment and then added...
  2. Arkun

    How do I use the parallel axis theorem for moment of inertia in this homework?

    Isn't the center of mass of each segment of the rod at their midpoint? Which means that the distance between the center of mass for each segment of the rod and the axis of rotation is ## L / 4 ##?
  3. Arkun

    How do I use the parallel axis theorem for moment of inertia in this homework?

    I have the same problem as OP has, and while I know where the C.M. of the bent rod is, how can you use the center of mass of the two segments of the rod to algebraically obtain the center of mass of the whole rod? What I did was determine the distance of the center of mass from the rotational...
  4. Arkun

    Centripetal and Tangential Acceleration

    Homework Statement A car drives on a circular road with radius ##R##. The distance driven by the car is given by ##d(t) = at^3 + bt## [where ##t## in seconds will give ##d## in meters]. In terms of ##a##, ##b##, and ##R##, and when ##t = 2## seconds, find an expression for the magnitudes of (i)...
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