A coyote notices a rat running past it, toward a bush where the rat will be safe. The rat is running with a constant velocity of vrat=5m/s and the coyote is at rest, ?x=22m to the left of the rat. However, at t=0s, the coyote begins running to the right, in pursuit of the rat, with an acceleration of acoyote=6m/s2.
Set your reference frame to be located with the origin at the original location of the coyote and the rightward direction corresponding to the positive x-direction.