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Posted by on Monday, October 11, 2010 at 10:07pm.

A student librarian picks up a 2.2 kg book from the floor to a height of 1.10 m. He carries the book 7.8 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 - , Monday, October 11, 2010 at 10:54pm

    Can you calculate the total number of meters he raises the book? Multiply that by the book's weight (not the mass) for the answer you seek.

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