11판/2. 직선운동

2-2 할리데이 11판 솔루션 일반물리학

짱세디럭스 2022. 10. 9. 23:53
{v0=3.70×105[m/s]L=2.30[cm]v=4.40×106[m/s] \begin{cases} v_0 &= 3.70\times10^5\ut{m/s}\\ L &= 2.30\ut{cm}\\ v &= 4.40\times10^6\ut{m/s} \end{cases} 2aS=v2v02, \begin{aligned} 2aS&=v^2-{v_0}^2,\\ \end{aligned} a=(4.40×106[m/s])2(3.70×105[m/s])22(2.30[cm])100[cm]1[m]=961155000000000023[m/s2]4.1789347826086956×1014[m/s2]4.18×1014[m/s2] \begin{aligned} a&=\frac{(4.40\times10^6\ut{m/s})^2-{(3.70\times10^5\ut{m/s})}^2}{2(2.30\ut{cm})}\cdot\frac{100\ut{cm}}{1\ut{m}} \\ &=\frac{9611550000000000}{23}\ut{m/s^2}\\ &\approx4.1789347826086956\times 10^{14}\ut{m/s^2}\\ &\approx4.18\times 10^{14}\ut{m/s^2}\\ \end{aligned}