Showing posts with label scabby leg syndrome. Show all posts
Showing posts with label scabby leg syndrome. Show all posts

Tuesday, May 25, 2010

An Open Letter to My Center of Mass, or Gravity

Oh Hey Center of Gravity,

I appreciate you reminding me of how terrible you are. My knees are killing me, thanks for asking. I forgot how terrible you were and toppled over when I tried to sprint after that striker in yesterdays game. You wouldn't know that, cause your just a mean location of all the mass in my body, with no consciousness whatsoever! So why am I writing to you?

Well, there's a great reason for that, which is I'm refusing to admit that I'm physically awkward, especially when I fall down repeatedly trying to catch up to someone much faster than me and already has quite a lead due to my inept sense of myself in space. Have you heard of this?

\mathbf{p}=M\mathbf{v}_\mathrm{cm}
It's important. Don't ask why, just learn it. I may be the brains of this operation, but you sir need to learn your boundaries. Got it? Well how bout this one?

   \mathbf{R} = \frac{M_0 \mathbf{R}_0 + m_3 \mathbf{r}_3}{M_0 + m_3} = \frac{ (m_1 + m_2) \left( \frac{m_1 \mathbf{r}_1 + m_2  \mathbf{r}_2}{m_1 + m_2} \right) + m_3 \mathbf{r}_3}{M_0 + m_3} = \frac{m_1 \mathbf{r}_1 + m_2 \mathbf{r}_2 + m_3 \mathbf{r}_3}{m_1 +  m_2 + m_3}.
SUCK IT! I win.