A truck starting from rest moves with an acceleration of \( 5 \mathrm{~m} / \mathrm{s}^{2} \) fo...

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A truck starting from rest moves with an acceleration of \( 5 \mathrm{~m} / \mathrm{s}^{2} \) for \( 1 \mathrm{sec} \) and then moves with constant velocity. The velocity w.r.t. ground v/s time graph for block in truck is (Assume that block does not fall off the truck)
(a)
\( (c) \)
(b)
(d) None of these
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