A dog running at 4.0 m/s sees a sitting squirrel and decides to catch it. The squirrel is initially 45 m ahead of the dog and starts accelerating at 0.50 m/s2 until it reaches a maximum speed of 2.5 m/s. Assume both are running in a straight line (with the squirrel trying to get away!). When and where does the dog catch the squirrel?