7.(a)What is distance- time graph?What are the uses of distance time graph? (b) The following distance-time graph of two objects (A and B) are given . What can you say about the motion of these two objects
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A distance-time graph shows how the distance and speed of an object changes with time. This graph shows the movement of three objects over time. ... A straight line indicates constant speed, whereas changes in slope at different time intervals indicate changing speeds.
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the slope of distance time group give the speed of the object .
as the slope of object (B) is the greatest among all thus B has the largest speed and hence it is the fastest among all the objects
B) as the curve the object do not intosect with each other even one hands they cannot be at all some points on the road at the same time
c) on the y axis ( i.e distance line ) 7 small represent 4 Km 1 small line = 4 by 7 =0.57 Km
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