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Answer to Question #50659 in Mechanics | Relativity for labu

Question #50659
gravitational force work downward. if a ball is placed on a table from ground , then the work done by gravitational force= -mgh. when any agent do this it becomes =mgh. why it is positive here?

how does gravitational force work in 1st case without external agent?is it possible?
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Expert's answer
2015-02-19T09:53:31-0500
The answer to the question is available in the PDF file https://assignmentexpert.com/homework-answers/physics-answer-50659.pdf

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