题目
D由y^2=(9)/(2)x与直线x=2所围成，求均匀薄片(面密度设为rho)D绕x轴的转动惯量的数值为I_x=?()A. (52)/(5)rho;B. (62)/(5)rho;C. (72)/(5)rho;D. (82)/(5)rho;
D由$y^2=\frac{9}{2}x$与直线$x=2$所围成，求均匀薄片(面密度设为$\rho$)D绕x轴的转动惯量的数值为$I_x=$?()
A. $\frac{52}{5}\rho;$
B. $\frac{62}{5}\rho;$
C. $\frac{72}{5}\rho;$
D. $\frac{82}{5}\rho;$
题目解答
答案
C. $\frac{72}{5}\rho;$