The displacement (in meters) of a particle moving in a straight line is given by the equation of motion s = t=a V= m/s t=1 V= m/s t=2 v = m/s t=3 V = m/s 8 7 where t is measured in seconds. Find the velocity (in m/s) of the particle at times t = a, t = 1, t = 2, and t = 3. 2'