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Which of the following graph(s) represen...

Which of the following graph(s) represent retardation ? [v : velocity, t : time, x : position]

A

B

C

D

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The correct Answer is:
A, B, D
Retardation means `|overset(vec)(v)|` is decreasing
In `A,B |overset(vec)(v)|` is decreasing
In `D` slope of `xt` is decreasing
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