The following figure represents the velocity-time graph of a moving car on a road:
Which segment of the graph represents the retardation?
AB
BC
CD
None
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-2 – 2015
– Segment AB has a positive slope, indicating positive acceleration (velocity increasing).
– Segment BC is horizontal, indicating zero slope and thus zero acceleration (constant velocity).
– Segment CD has a negative slope, indicating negative acceleration. Since the velocity is positive during this segment, a negative acceleration means retardation or deceleration (velocity decreasing).