"At what instant of time are the velocity and acceleration in the same direction? At what instant of time is acceleration zero? At what instant of time does the particle slow down? "

25 t = 2 s 20 1= 1s t= 3 s v(t) (m/s) t=4.5 s -20 -25 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Time (s)