A rocket (initially at rest) was launched vertically from the ground with a constant acceleration that lasted for 1 seconds. After this the rocket engine stops and the rocket continues to go up freely. After a passage of 23 seconds since the launch, the altitude of the rocket is 5,116 meters from the ground. What was the rockets original acceleration during the first 16 seconds of the flight? Use g = 9.8ms 2, and ignore air resistance