Recent content by moolimanj

  1. M

    Normal Modes - One Dimensional Oscillating Systems

    Hi Can someone help me with the following questions please (see attachment)? I really need some help on the following: i). Drawing a force diagram for each particle (I really hate drawing these). As a guess for m1, am I right in thinking that H and N point up and W points down? But...
  2. M

    Linear Damping Model: Help Solving Forces & Displacement Vector

    For part (2), am I right in thinking that the following are the forces acting on the particle: W=-mgi R=rxi H=k(l-l0)s note the x term in R has a dot on the top (ie function of velocity I think
  3. M

    Linear Damping Model: Help Solving Forces & Displacement Vector

    Hi All This is my first post and I was hoping that someone could help. I have the following attached question regarding a linear damping model (in this case a seismograph). (1) Draw a force diagram. If W=weight, R= air resistance, and H= spring force, then I get W pointing down and both...
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