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5. Which of the following is a vector quantity? A) acceleration B) mass C) speed D) energy E) more than one of the above 6. If you launch a ball horizontally out of a window at the same time that you drop a ball, which of the following things will happen? A) The ball launched horizontally will slow down. B) Both balls will fall at the same rate. C) The ball that was dropped will hit the ground rst. D) The ball that was launched horizontally will hit the ground rst. 7. A ball is thrown vertically upward into the air. Which of the following acceleration-time graphs represents the ball's motion? E C D E 575.! 375: DIS-t 5V5: 5.5.! a a a 3 i4: [Lt i4: i:f Dr 8. Which of the following statements are true of scalars and vectors? List all that are TRUE. A a A vector quantity always has a direction associated with it. A scalar quantity can have a direction associated with it. Vectors can be added together; scalar quantities cannot. Vectors can be represented by an arrow on a scaled diagram; the length of the arrow represents the vector's magnitude and the direction it points represents the vector's direction. 9.0 .cm 9. Which of the following quantities are vectors? Include all that apply. distance traveled displacement average speed average velocity instantaneous velocity acceleration we 51.0 53'?\