Answer:
2.13 s
Explanation:
Hi!
At t = 0s the rocket is at rest in its platform, so the intial speed is zero. I f the acceleration is A, then the height Y, and the speed V are:
We nedd to find time T during which the rocket engine provides upward acceleration. We know that:
With these 2 equations we can find A and T (dropping units for simplicity):
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