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an automobile travels on a straight road for 40 km at 30 km\h .It then continues in the same direction for another 40 km at 60 km\h.
A )What is the average velocity of the car during this 80 km trip?(Assume that it moves in the positive x direction )
B) What is the average speed ?
C) Graph x versus t and indicate how the average velocity is found on the graph. ssm www
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