Calculate the slope at free end of a cantilever beam of length l = 5 m subjected to a uniformly varying load with intensity varying from 0 kN/m (at B) to 20 kN/m (at A) as shown in figure. Consider that the flexural rigidity (EI) of the beam as constant throughout its length.
1
\( \frac{104.16}{E I} \)
2
\(\frac{64.64}{E I} \)
3
\(\frac{129.27}{E I} \)
4
\( \frac{88.58}{E I}\)