The woman does 100 joules of work lifting her child 1 meter vertically, and no additional work is done while carrying the child horizontally for 50 meters, assuming constant velocity. ;
The woman does 100 Joules of work to lift her 100-newton child up one meter, and no additional work is done carrying the child horizontally for 50 meters. ;
The woman does 100 joules of work while lifting her child up one meter. When carrying the child horizontally for 50 meters, no additional work is done due to gravity, resulting in a total of 100 joules of work done. Therefore, the total work done by the woman is 100 joules.
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