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a student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 37 degrees above the horizontal.
a student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 37 degrees above the horizontal. if the mass of the box and the books is 40 kg, what is the normal force on the box? a. 332 N b. 312 N c. 392 N d. 292 N