Work Done by Librarian on 2.2kg Book

AI Thread Summary
To calculate the work done by the librarian on the 2.2kg book, the formula W = Fs is applied, where F represents the force (mass times gravity) and s is the distance. The librarian first lifts the book to a height of 1.25m, then carries it 8.0m horizontally before placing it on a shelf 0.35m high. The total work done includes the vertical lift and the horizontal distance. The calculations involve determining the force due to gravity and the total distance moved. Ultimately, the work done can be quantified by combining these movements into the formula.
DeeAussie
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A librarian lifts a 2.2kg book from the floor to a height of 1.25m. He carries the book 8.0m to the stacks and places the book on a shelf that is 0.35m above the floor. How much work does he do on the book?
 
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Hey DeeAussie, Well you seem to have all the correct pieces of information. All you have to do is apply it to the Formula for Work, where in this case it is W =Fs, where F = mg.

W = work, F = Force, s = distance i.e. the height and the distance walked, m = mass, g = gravity.
 

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