In the given velocity (V) versus time (t) graph, accelerated and decel

In the given velocity (V) versus time (t) graph, accelerated and decelerated motions are respectively represented by line segments

CD and BC
BC and AB
CD and AB
AB and CD
This question was previously asked in
UPSC NDA-1 – 2019
In a velocity-time graph, accelerated motion is represented by a line segment with a positive slope (velocity increasing with time), and decelerated motion (or retardation) is represented by a line segment with a negative slope (velocity decreasing with time).
Line segment CD has a positive slope, indicating that velocity is increasing with time, which is accelerated motion. Line segment AB has a negative slope, indicating that velocity is decreasing with time, which is decelerated motion.
Line segment BC represents motion with constant velocity, meaning zero acceleration. The question asks for accelerated motion followed by decelerated motion, which corresponds to segments CD and AB respectively.
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