Physics question

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A student librarian picks up a 2.2 kg book from the floor to a height of 1.15 m. He carries the book 8.4 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book?

  • Physics question -

    work= mgh h=(1.15+.35) walking horizontally, no work is done

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