shannonmarie16 shannonmarie16

21-10-2016
Physics

contestada

joe is holding a book over his head. Is he preforming work? why?

Respuesta :

21-10-2016

If a book is there on the table, no work is done as no distance is covered. If I hold up a book in my hand and my arm is stretched, if no work is being done, where is my energy going?

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