Adog walking to the right at  1.5\,\dfrac{\text m}{\text s}1.5sm1, point, 5, space, start fraction, m, divided by, s, end fraction  spies a cat ahead, and begins chasing the cat with a constant acceleration of  12\,\dfrac{\text m}{\text s^2}12s2m12, space, start fraction, m, divided by, s, start superscript, 2, end superscript, end fraction.
what is the velocity of the dog after running for  3.0\,\text m3.0m3, point, 0, space, m?