Recent content by rage_pandora

  1. R

    What is the rotational inertia of a model rocket attached to a rigid rod?

    Ok so to find the net torque I multiplied the whole radius (0.6m) by the force (4N) and sin (45) which gave me a final value of 1.697 Nm. For the rotational inertia I added the rotational inertia of a rod about one end (1/3)(M)L^2 and the rotational inertia of the rocket mr^2 which gave me a...
  2. R

    What is the rotational inertia of a model rocket attached to a rigid rod?

    Ok so basically I know that I'm supposed to use the formula: net torque = I*a. I also know that the torque will be r*F*sin(45). The problem I am having is figuring out whether I use the whole length(0.6m) for the radius, or the center of mass of the system? The other thing I am stuck on is...
  3. R

    What is the rotational inertia of a model rocket attached to a rigid rod?

    Hi, This is my first time posting on this site and I was wondering if someone could help me with this question: A 200 g model rocket shown in Figure Ex13.24 generates 4.0 N of thrust. It spins in a horizontal circle at the end of a 100 g rigid rod. What is its angular acceleration? (I have...
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