- $${\omega ^2}{\text{R}}\cos \theta $$
- $${\omega ^2}\left( {{\text{R}} - {{\text{r}}_1}} \right)\cos \theta $$
- $${\omega ^2}\left( {{\text{R}} - {{\text{r}}_1}} \right)\sin \theta $$
- $${\omega ^2}{{\text{r}}_1}\sin \theta $$
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