# Question #8e65c

$2.82 \frac{m}{s}$
Using the formula $v {f}^{2} = v {i}^{2} + 2 a d$ , you can manipulate it to find vf, so
$v f = \sqrt{v {i}^{2} + 2 a d} = \sqrt{{0}^{2} + 2 \cdot 0.628 \cdot 6.31} = 2.81520 \ldots$
Taking into consideration of the sig digs, $v f = 2.82 \frac{m}{s}$