4. Consider a ball thrown straight upward. It moves up, changes direction, and falls back down. a. Examine the graphs below. Which graph represents the position vs. time for the ball?
Which graph represents the velocity vs. time for the ball?
(i)
(ii)
(iii)
(iv)
" " "
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b. What is the acceleration of the ball on the way up? What is the acceleration when it
reaches its top point? What is the acceleration on the way down?