Look again at the velocity-versus-time graph for the toy car shown in figure 2.15. a. Is the

Question:

Look again at the velocity-versus-time graph for the toy car shown in figure 2.15.
a. Is the instantaneous speed greater at any time during this motion than the average speed for the entire trip? Explain.
b. Is the car accelerated when the direction of the car is reversed at t = 50 s? Explain.

1.5 1.0 0.5 60 20 40 -0.5 -1.0 Time (s) Velocity (cm/s)