A rocket is projected vertically upwards and its time velocity graph is shown in the figure-1.11...

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A rocket is projected vertically upwards and its time velocity graph is shown in the figure-1.115. The maximum height attained by the rocket is :
(A) \( 1 \mathrm{Km} \)
(B) \( 10 \mathrm{Km} \)
(C) \( 100 \mathrm{Km} \)
(D) \( 60 \mathrm{Km} \)
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