A student has six books, all of them with a 4cm thickness and a weight of 30N. ¿What would be the minimum work to put the books in one pile, if the six books are in a table?
The Attempt at a Solution
I found the mass of each book, which is 3.06kg, and converted the thickness to m, 0.04m.
After that, i'm lost. :S I don't know how to work it out..