Please solve it with the numbers and all the calculations :$)$

The figure shows a two$-$lane suspension bridge with one centrally placed concrete tower.

The bridge deck is built of reinforced concreteconcrete with a self$-$weight of $25$ kN$/$m$3,$ thickness $400$ mm and two traffic lanes of $3\mathrm{.}5$ m$.$

There is one suspension cableeach side of the bridge track and the largest arrow height is fm $=8$ m$.$

Characteristic traffic load on the bridge track is $3$kN$/$m$2.$

a$)$ Assume that the hangers give evenly distributed forces to the cables. Calculate design forces ithe cables at the tower $($A$)$ and when fixed in the rock $($B$).$ Also calculate the angle of the cable at these points.

b$)$ Information about the tower's geometry and material is given in the figures. Assume joint at foundation and seeaway from the weakening of the cross$-$section in the driving zone. Assume that the critical section with respect to buckling is $20$m abovefoundation. What is the dimensioning normal force in this section also reaches the tower's self$-$weightis included? Assume a buckling shape and calculate slenderness and critical buckling load for the tower? Suggest measuresif necessary