this is for holding javascript data
Ghlen Livid edited vec_a_t_vec_a__.tex
almost 8 years ago
Commit id: ab4920031dea159fb1849496de2e0fd552703aed
deletions | additions
diff --git a/vec_a_t_vec_a__.tex b/vec_a_t_vec_a__.tex
index d55b360..1e859f5 100644
--- a/vec_a_t_vec_a__.tex
+++ b/vec_a_t_vec_a__.tex
...
$$(\vec a(t) + \vec a(t+\Delta t))\Delta t^2= \vec x(t-\Delta t) - \vec x(t) + \vec{x}(t+2 \Delta t) - \vec x(t+\Delta t) $$
Taking into account that
$$ \vec{v}(t + \Delta t) = \frac{\vec{x}(t+2\Delta t) - \vec{x}(t)}{2 \Delta t} ,$$
this gets us
$$(\vec a(t) + \vec a(t+\Delta t))\Delta t^2= \vec{v}(t+\Delta t) 2 \Delta t - \vec{v}(t) 2 \Delta t $$
$$ \vec{v}(t+\Delta t) = \vec{v}(t) + \frac{1}{2}(\vec a(t) + \vec a(t+\Delta t))\Delta t $$