Your friend is developing a new bending test fixture and needs your

help to verify their calculations. They plan on having their samples be

simply supported by a frictionless wedge and a roller. The sample will

be subjected to a distributed load on one end and a point load on the

other, as shown in the provided figure. Using this information:

a$)$ Determine the magnitude of the reaction forces at the wedge $($at $A)$ and at the roller $($at $B)$

b$)$ Draw the shear force $(V)$ diagram for this sample under the loading described

c$)$ Draw the moment $(M)$ diagram for this sample under the loading described

d$)$ Determine the maximum flexural $($or bending$)$ stress in the sample if it has a square cross$-$section with each side

measuring $15mm$

help me please