5. The motion of a race cart on a linear track is shown below. a) When is the car at the starting line? 40 b) When is the car sitting still? 20 displacement [m] time (s] () When is the car going in the -20 negative direction? 10 20 30 50 d) What is the biggest velocity logged? What is the biggest speed? Show all work. e) What is the average velocity of the cart between 0 and 20 seconds? Show all work. f) What is the average velocity of the cart for the entire trip? Show all work