Asked by reenam
if a boy is carrying a mass of 2-kg on and covers a distance of 2m in the direction of the force?
Answers
Answered by
drwls
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.
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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