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MasteringPhysics_ BASIC MOTION View

# MasteringPhysics_ BASIC MOTION View - MasteringPhysics...

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MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrint?assignm... 1 of 8 10/11/08 11:08 PM [ Print View ] Physics 2211-001, Fall 2008 Basic Motion Due at 11:00pm on Friday, August 22, 2008 View Grading Details Motion of Two Rockets Learning Goal: To learn to use images of an object in motion to determine velocity and acceleration. Two toy rockets are traveling in the same direction (taken to be the x axis). A diagram is shown of a time-exposure image where a stroboscope has illuminated the rockets at the uniform time intervals indicated. Part A At what time(s) do the rockets have the same velocity? Hint A.1 How to determine the velocity Hint not displayed ANSWER: at time only at time only at times and at some instant in time between and at no time shown in the figure Part B At what time(s) do the rockets have the same x position? ANSWER: at time only [ Print ]

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MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrint?assignm... 2 of 8 10/11/08 11:08 PM at time only at times and at some instant in time between and at no time shown in the figure Part C At what time(s) do the two rockets have the same acceleration? Hint C.1 How to determine the acceleration Hint not displayed ANSWER: at time only at time only at times and at some instant in time between and at no time shown in the figure Part D The motion of the rocket labeled A is an example of motion with uniform (i.e., constant) __________. ANSWER: and nonzero acceleration velocity displacement time Part E The motion of the rocket labeled B is an example of motion with uniform (i.e., constant) __________. ANSWER: and nonzero acceleration velocity displacement time Part F At what time(s) is rocket A ahead of rocket B? Hint F.1 Use the diagram Hint not displayed
MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrint?assignm... 3 of 8 10/11/08 11:08 PM ANSWER: before only after only before and after between and at no time(s) shown in the figure

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MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrint?assignm...
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