Question
Physics Question on Newtons Laws of Motion
During a journey from earth to moon and back, the greatest energy required from the rocket of the space ship is to overcome
A
the moons gravity at lunar landing
B
the moons gravity at lunar take off
C
the earths gravity at re-entry into earths atmosphere
D
the earths gravity at take off
Answer
the earths gravity at take off
Explanation
Solution
: The greatest energy is required to overcome the earths gravity at take off.