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Exam1-practice - Name(please print Last First Section...

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Phy211 Spring 2006 Syracuse University Exam 1 Page 1 Section Number (e.g. M002) _________SUID ______________________ Physics 211, Spring 2006 Exam 1 Document your work or earn no credit. Use the back of each sheet if you run out of space. Cross over any parts that correspond to given up thoughts. For numerical answers give at least 2 significant digits and specify units. 1. [20pts total] Two objects, A and B, move along straight and parallel tracks. Their motions are represented in the following position- vs. -time graph. For the questions below, consider only the parts of their motion shown on the graph. a. [4pts] For what time interval(s) do objects A and B move in the same direction? b.[2pts] Is object B speeding up , slowing down , moving with constant speed or neither of these cases? c. [4pts] Calculate average velocity of object A for the time interval from 3 to 6.5 seconds. d.[4pts] Calculate average acceleration of object A for the time interval from 3 to 6.5 seconds. e. [3pts] Calculate instantaneous velocity of object A at t=6.5 seconds.
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