A rolling ball has an initial velocity of -1.5 m/s .
a. if the ball has constant acceleration of -0.23 m/s^2, what is its velocity after 2.2 s?
V = vo + at = -1.5
-0.23 * 2.2 = -1.5 - 0.506 = -2.006 = -2.0 m/s
answer is -2.0 m/s
b. what was its average velocity during that time...