Please help me with the following questions.

1.

Exercise 2.31 - Enhanced - with Solution 13. 14. 15. . f ' Time 16. Pick one graph that definitely indicates an object has reversed direction. ' 17. Pick one graph that might possibly be that of an object stand ing still. Pick 3 graphs that represent the motion of objects whose acceleration is changing. _ L} 18. 19. 20. (0 3+ 3 o g - Time ' Pick a velocity graph and an acceleration graph that could describe the mo- tion of the same object during the time shown. (9) c + .9 21. Velocity graph. go 22. Acceleration graph. ,