Glancing Stones at Naseby

At an indoor curling rink in Naseby, a moving stone A strikes a stationary stone B a glancing blow. Both stones have mass $m = 19.0\ \text{kg}$. Just before the collision A moves at $u = 2.40\ \text{m s}^{-1}$ along the $x$-axis. A high-speed camera shows that just after the collision A moves at $v_A = 1.10\ \text{m s}^{-1}$ in a direction $62.0^\circ$ to the $+x$-axis (on the $+y$ side). Speeds are measured to $\pm 0.005\ \text{m s}^{-1}$ and angles to $\pm 0.5^\circ$. Treat the stones as not spinning before the collision, and ignore friction with the ice during the brief collision.