For the beam and loading shown, use the double$-$integration method to determine $($a$)$ the equation of the elastic curve for the cantilever beam, $($b$)$ the deflection at B$,($c$)$ the deflection at the free end, and $($d$)$ the slope at the free end. Assume that El is constant for the beam. Let $w=5k\frac{N}{m},L=3\mathrm{.}5m,E=190$GPa, and $I=120{10}^{6}m{m}^4$