Example $3$

Determinc ${}_{\text{m}\text{a}\text{x}}=?$

$M=\frac{M_0}{l}x$

$EI{y}^{\text{'}\text{'}}=\frac{M_0}{l}x$

$EZ{y}^{\text{'}}=\frac{{}_0}{l}\frac{x^2}{2}+c_1$

EIy$=\frac{{}_0}{l}\frac{x^3}{6}+c_{1}x+c_2$

$\frac{M_0}{l}$uarr

B$.$C$.$

$x=0=>y=0=>c_2=0$

$x=l=>y=0=>c_1=-\frac{M_{0}l}{6}$