Two blocks $A(m_A=5\mathrm{.}1(kg))$ and $B(m_B=1\mathrm{.}6(kg))$ are each pin$-$connected to a rigid rod ot negligible mass $(l$

$=0\mathrm{.}5m.$ The system is released from rest in the position depicted in the vertical plane, where $=10\mathrm{.}2,=$

$62\mathrm{.}2$ and $B^{\text{'}}\text{'}$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.