Asked by geetasinghd321 | 13th Sep, 2021, 07:01: PM

Expert Answer:

Graph-b is correct .
Distance is scalar quantity. Distance will always increase with time . Distance can not be negative .
Distance can not decrease with time .
( Displacement which is vector can decrease with time or can be negative )
In graph-a and graph-d , distance decreases with time .
In graph-c , distance becomes negative for some part of time. 
Only in graph-b, distance increases with time . Hence only graph-b is correct.
Remaining graphs are not correct.

Answered by Thiyagarajan K | 13th Sep, 2021, 07:32: PM

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