science
posted by reenam .
if a boy is carrying a mass of 2kg on and covers a distance of 2m in the direction of the force?

You have not asked a complete question.
If you want to know how much work he does moving the mass, it is 2kg *g *2m = (4 kg*m)*g = 39.2 Joules
It is negative because he is letting "the force" (which is presumably the weight) push it in the direction of the gravity force.
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