lig question in complete sentences in your own words. Two different explanations are given by two different students as to why a book sitting on a level tabletop doesn't fall downward. For each of the explanations, carefully discuss in the space immediately below it why it's incorrect. Explanation 1: The only force acting on the book is gravity, but the table gets in the way, so the book can't move downward. Explanation 2: There are multiple forces acting on the book, but the sum of the upward forces is stronger than the sum of the downward forces, so the book can't move downward