Aposition versus time graph is shown below. a position versus time graph is shown with y-axis labeled position in meters north up to 20 and x-axis labeled time in seconds up to 10. a line connects points 0, 0 and 1, 4. a horizontal line connects points 1, 4 and 4, 4. a line connects points 4, 4 and 6, 10. a horizontal line connects points 6, 10 and 8, 10. a line connects 8, 10 and 9, 14, and then 10, 15. use the graph to determine the average velocity in m/s of the object at the end of 4.0 seconds?

a. 1 m/s
b. 2 m/s
c. 4 m/s
d. 5 m/s

try answering this one without me being able to add a