Two blocks A$($m$\_($A$)=4\mathrm{.}5($kg$))$ and B$($m$\_($B$)=2\mathrm{.}2($kg$))$ are each pin$-$connected to a rigid rod of

negligible mass $($l$=0\mathrm{.}4$m$).$ The system is released from rest in the position depicted in the

vertical plane, where $\backslash$theta $=7\mathrm{.}3\backslash$deg $,\backslash$phi $=57\mathrm{.}5\backslash$deg and B $\text{'}$s slot is vertical. Assume the slots in which

the blocks slide are smooth and each block contacts only one side of its slot at any instant.

Find the magnitude of the acceleration of block A and the magnitude of the acceleration of

block B at the instant the system is released from rest.