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6.) Given the following v vs t graph for some object, the object at some velocity in the +x direction. After 3.8 seconds it stops, at 7.6 seconds it changes acceleration, and after 10 seconds, it is stopped again. (Note that from 0 s until 7.6 seconds, the acceleration is the same.) From 0 until 10 seconds, the average speed of the object is 28 m/s. What is the acceleration from 0 to 7.6 seconds in m/s2? If in the -x direction, include a negative sign.

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