A person holds a suitcase for 30 minutes and gets tired.Has he done some work or not ? Justify your answer
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According to Physics, the work done zero because F cos theta 90 = 0 J.
But we know , is raised to certain height with a certain mass it gains potential energy therefore some work is being done because energy is equal to work.
But we know , is raised to certain height with a certain mass it gains potential energy therefore some work is being done because energy is equal to work.
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