Lesson 27 Accelerating the acceleration

Worksheet 3 Extension questions

  1. The distance from the Earth to the Moon is about 385 000 km. At what time will the rocket be able to cross such a distance in one second?
  2. About how long would it take a DD rocket from the Earth to reach the Sun, about 150 million km away ?
  3. Some scientists say this DD rocket idea is impossible. Which of the following objections do you think is the most important from your current knowledge? Prepare some explanation.
  • There is no fuel that allows doubling of speed.
  • At higher speeds the rocket will disintegrate because of high temperatures caused by friction.
  • There is a maximum speed in the Universe.


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