Acceleration and velocity

A rocket ship starts from rest and turns on its forward booster rockets, causing it to have a constant acceleration of $4 \,\dfrac{\text m}{{\text s}^2}$4, start fraction, start text, m, end text, divided by, start text, s, end text, squared, end fraction rightward.

$\dfrac{\text m}{{\text s}}$start fraction, start text, m, end text, divided by, start text, s, end text, end fraction