Answer:
(i) From the given graph,
Acceleration of car\[A=\frac{80m{{s}^{-1}}}{8}=10m{{s}^{-2}}\]
(ii) From the given graph
Acceleration of car B between 2s to 4s is
\[=\frac{(60-20)m{{s}^{-1}}}{2s}=20m{{s}^{-2}}\]
The acceleration of a car started at t - 0
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