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if a boy is carrying a mass of 2-kg on and covers a distance of 2m in the direction of the force?

  • science -

    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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