A rocket blasts off from rest at time t = 0 and accelerates upward at a constant rate for 20 seconds. The engines then cut off. At time t = 50, the rocket attains its maximum height and begins to fall. It crashes to the ground at t = 90. Use the axes below to sketch the velocity of the the rocket as a function of time. Be sure to label the t-axis appropriately.
This is the velocity time graph.
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