acceleration\nobjectives:\nanalyze and explain velocity vs. time graphs.\nvocabulary:\nacceleration\npractice…

acceleration\nobjectives:\nanalyze and explain velocity vs. time graphs.\nvocabulary:\nacceleration\npractice:\n10. list the different ways an object can accelerate.\n11. analyze the motion of an object that has an acceleration of 0 m/s²\n12. by the time an airplane reaches the end of a runway, it has reached a speed of 80 m/s in 20 s. what is its acceleration?\n13. a puppy is running with a speed of 11.2 m/s towards its owner when it gets distracted by a squirrel and stops running. if it halted its run in 2 s, what was the acceleration of the puppy?\n14. explain what the slopes on a distance vs. time graph and on a velocity vs. time graph tell you.\n15. a ball is dropped from a cliff and has an acceleration of 9.8 m/s². how long will it take the ball to reach a speed of 24.5 m/s?\n16. indicate what kind of acceleration is shown in the following graphs. a
Answer
Answer:
(10) Speeding up, slowing down, changing direction (11) The object is moving with a constant velocity (no change in speed or direction) (12) (4\ m/s^{2}) (13) (- 5.6\ m/s^{2}) (14) Slope of distance - time graph is speed; slope of velocity - time graph is acceleration (15) (2.5\ s) (16) First graph: positive acceleration; Second graph: negative acceleration; Third graph: zero acceleration