$4.[15\backslash \%]$ A $\backslash (1750-\backslash$mathrm$\{$N$\}\backslash )$ irregular beam is hanging horizontally by its ends from the ceiling by two vertical wires $(\backslash ($ A $\backslash )$ and $\backslash ($ B $\backslash )),$ each $1\mathrm{.}25$ m long and weighing $0\mathrm{.}360$ N $.$ The center of gravity of this beam is one$-$third of the way along the beam from the end where wire A is attached. If you pluck both strings at the same time at the beam, what is the time delay between the arrival of the two pulses at the ceiling? Which pulse arrives first? $($Neglect the effect of the weight of the wires on the tension in the wires$).$