Answer
Block 1 is moving forward after the collision.
Work Step by Step
If the center of mass is at point A, then $m_1 \gt m_2$
We can use equation (9-67) to find an expression for the final velocity $v_{1f}$ of block 1 after the collision:
$v_{1f} = \frac{m_1-m_2}{m_1+m_2}~v_{1i}$
Since $m_1 \gt m_2,$ then $v_{1f} \gt 0$ so block 1 is moving forward after the collision.
