A two-stage rocket is fired vertically from rest at s = 0 with an acceleration as shown. After time t₁ the first stage A burns out and the second stage B ignites. Plot the v-t and s-t graphs which describe the motion of the second stage for 0 2. Given:

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t1 = 30 s t2 = 60s al = 9 m 2 S a2 = 15 2 S