# Child on Swing#

As an child reaches the bottom of a loop of their swing in the vertical plane, they have a horizontal velocity of $$v = {{params.v}}cm/s$$ and no horizontal acceleration. The radius of curvature for the loop is 1074cm, and the height of the child off the ground is is $${{params.h}}cm$$. For their pet rabbit watching at $$O$$, $$d = {{params.d}}cm$$ away.

## Part 1#

Determine the value of $$\ddot{r}$$.

Determine the value of $$\ddot{\theta}$$.