5. A book is pushed against a vertical wall so that it does move. For this situation, which of the following statements is true? a. The weight of the book is equal in magnitude to the force due to kinetic friction but opposite in direction. b. The normal force acting on the book is equal to the weight of the book. c. The normal force acting on the book is independent of the force of push acting on the book. d. The weight of the book is equal in magnitude to the drag force but opposite in direction. e. The weight of the book is equal in magnitude to the force due to static friction but opposite in direction