In a computer game a villain escaping from the hero is

Question

In a computer game, a villain escaping from the hero is programmed to have an acceleration given by ax(t)=(6.00m/s³)t-4.00m/s².

Part A: If the villain's initial velocity is 3.50 m/s, what is his velocity at 2.00 s?

Part B: If the villain starts at the origin, where is he when his acceleration is 2.00 m/s²?

Show all work, use additional paper if necessary.