1 1. (10 pts.) You throw a baseball straight up in the air at a speed of 20.7 m/s. It passes by a tree branch 7.2 m above the ground once on the way up, and again on the way down. a. What is the baseball's velocity when it passes the branch on the way up? (5 pts.) 20.7 mn/s 7. 7na = 2. 685 201 m/3 - 7.72 m 2, 68% Not how this is solved. b. How much time is there between passes of the tree branch? (5 pts.) (There is more than one way to solve this.) + nen Sky 20 7 mis = 268s 7.7 m Not how this is solved. Insowned9. A person's position is described by the graph below. (10 pt.) Position (m) 0 2 3 4 5 6 7 8 9 10 -1 -2 -3 Time (s) a. Calculate their velocity at 5s. (5 pts.) + 2 How do we O 5-0 Find V from x vsit. b. What is their average velocity between 1 and 9 seconds? (5 pts.) Units + 3 units. - 1 - 2 =- 12 1 - 9 calculator entary