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Solve the all parts of following question:

Question: A 1000kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 16s, then the motor stops. The rocket altitude 20s after launch is 3100m. You can ignore any effects of air resistance.

Part A: What was the rocket's acceleration during the first 16s?

Part B: What is the rocket's speed as it passes through a cloud 3100m above the ground?

I need help to find the rocket's speed as it passes through a cloud 3100m above the ground.

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