Answer:
(i) From
the graph, it is clear that velocity is not changing with time i.e.,
acceleration is zero.
(ii) Again from the
graph, we can see that there is no change in the velocity with time, so
velocity is after 15s will remain same as 20
(iii)
Distance covered in 15 s
=
velocity x time
= 20
x 15 = 300m
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