Question $4$:

$(25$ Points$)$

The beam shown in Figure $\backslash (\backslash$mathbf$\{4\}\backslash )$ is supported by the roller at A and a pin at B $.$

Figure $4$: Illustration of the information provided in Question $1$

a$)$ Draw the free body diagram

$(10$ Points$)$

b$)$ Determine the reactions at points A and B on the beam

$(15$ Points$)$