A cantilever of length l is carrying a uniformly distributed load of ω per unit run for a distance 'a' from fixed end. The slope at the free end is
(where EI is the flexural rigidity)
1
\(\frac{wa^3}{6EI}\)
2
\(\frac{wa^4}{8EI}\)
3
\(\frac{wa^4}{6EI}\)
4
\(\frac{wa^3}{8EI}\)