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The height in meters of a rocket above the groundtseconds after launch ish(t)=20????+3????^2 .What is the formula for the speed of the rocket at timet?

The height in meters of a rocket above the groundtseconds after launch ish(t)=20????+3????^2

  1. .What is the formula for the speed of the rocket at timet?
  2. What is the speed of the rocket at time????=1?
  3. How long did it take for the speed of the rocket to become120m/s?
  4. After how many seconds was the height of the rocket100meters?

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