During the journey of space ship from earth to moon and back, the maximum fuel is consumed

Against the gravitation of earth in return journey

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Against the gravitation of earth in onward journey

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Against the gravitation of moon while reaching the moon

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None of the above

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Solution

The correct option is B Against the gravitation of earth in onward journey
During the journey from earth to moon, an upward thrust is required to overcome the gravitational pull of earth. So work has to be done against the earth's gravity, thus a lot of fuel is consumed. As we know gravitational force of earth is very strong to that of moon. Thus on return journey, very small work need to be done to overcome the gravity of moon and thus negligible amount of fuel is consumed.

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