5-33 할리데이 11판 솔루션 일반물리학

$$ \begin{cases} v_0&=5.0\times10^6\ut{m/s}\\ d&=1.0\times10^{-14}\ut{m}\\ m&=1.67\times10^{-27}\ut{kg}\\ \end{cases} $$ $$ \begin{aligned} F&=ma_R\\ &=m\(\frac{v^2}{R}\)\\ &=\frac{mv^2}{\frac{d}{2}}\\ &=\frac{2mv^2}{d}\\ &=\frac{167}{20}\ut{N}\\ &=8.35\ut{N}\\ &\approx 8.4\ut{N}\\ \end{aligned} $$