Question

Rockets are lunched in Eastward direction to take advantage of:

• A. The clear sky on Eastersn side.
• B. The thinner atmosphere on this side.
• C. both A and B
  
• D. non of the above
  

Answer 1

The correct option is A The clear sky on Eastersn side.

Rockets are lunched in Eastward direction because, earth’s rotational energy is maximum at equator. When a spacecraft is launched, it should end up spinning around the earth quickly enough by the earth’s gravity. so, in east direction, initial velocity is equal to the earth surface i.e. $1670Km/h$