Using influence lines, determine the maximum positive value of the vertical reaction $C_y,$ maximum positive value of the intornal shear force at location $1-1,V_{1-1}.$ Consider a uniform dead load of $2\mathrm{.}5ki\frac{p}{f}t,$ a uniform moving live load of $3\mathrm{.}5ki\frac{p}{f}t,$ and a moving or floating concentrated live load of $30$ kip $.$ Clearly show where to place the dead load and live loads for each case.