下列有關relative centrifugal force(RCF)的計算,何者正確?
1.118 × \mathrm{10}^{-5} × r × rpm
\mathrm{10}^{-5}
1.118 × \mathrm{10}^{-5} × r × \mathrm{rpm}^{2}
\mathrm{rpm}^{2}
1.118 × \mathrm{10}^{-5} × \mathrm{r}^{2} × rpm
\mathrm{r}^{2}
1.118 × \mathrm{10}^{-5} × \mathrm{r}^{2} × \mathrm{rpm}^{2}