(Solved): For the idelaised two-dimensional frame given in figure 3 , determine the rea ...

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For the idelaised two-dimensional frame given in figure 3 , determine the reaction force ${\mathbf{A}}_{\mathbf{y}}$ at the roller support A. (a) Determine the reaction force ${\mathbf{A}}_{\mathbf{y}}$. HINT: The actual values of $\mathbf{H}$ are not given. Develop an equation to express ${\mathbf{A}}_{\mathbf{y}}$ in terms of H. (b) Develop an excel spreadsheet to calculate the reaction force ${\mathbf{A}}_{\mathbf{y}}$ for your chosen values of $\mathbf{H}$. (Ignore the self-weigh of the frame.) Figure 3. Reactions at the supports.