11판/2. 직선운동

2-11 할리데이 11판 솔루션 일반물리학

짱세디럭스 2023. 6. 25. 16:22
{H=S1.70hM=S1.70+1.40=S3.10a=g=9.80665[m/s2] \begin{cases} H&=S_{1.70}\\ h_{M}&=S_{1.70+1.40}=S_{3.10}\\ a&=-g=-9.80665\ut{m/s^2} \end{cases} v=v0+at,v=v_0+at, v0=v3.1at=(0)(g)(3.1)=3.1g \begin{aligned} v_0&=v_{3.1}-at\\ &=(0)-(-g)(3.1)\\ &=3.1g \end{aligned} S=v0t+12at2,S=v_0t+\frac{1}{2}at^2, H=(3.1g)(1.7)+12(g)(1.7)2=15340g=153409.80665[m]=30008349800000[m]=37.51043625[m]37.5[m] \begin{aligned} H&=(3.1g)(1.7)+\frac{1}{2}(-g)(1.7)^2\\ &=\frac{153}{40}g\\ &=\frac{153}{40}\cdot9.80665\ut{m}\\ &=\frac{30008349}{800000}\ut{m}\\ &=37.51043625\ut{m}\\ &\approx37.5\ut{m} \end{aligned}