For questions #1 - 6, it is possible to have MORE THAN ONE correct answer. 1. A physics book resting on a table is given a brief push. Which of the following forces act on the book after the push while it slides to a stop? a. Applied Force by the hand b. Normal Force by the table c. Frictional Force by the table surface d. Gravitational Force by the earth 2. Which of the following would describe the motion of the book in problem 1 after the push if there was no friction at all? a. The book moves at constant speed b. The book slows down gradually to a stop. c. The book continues at constant speed for a while, then slows down d. The book does not have any motion. Refer to the diagram below for # 3-6. Multiple answers are still possible. A student attaches a string to a cart on the table, and pulls with a large constant force on the string There is a small frictional force on the cart by the table. 3. Which of the following forces act on the cart? a. Applied Force by the hand b. Tension Force by the string c. Normal Force by the table d. Frictional Force by the table surface Gravitational Force by the earth Which of the following describes the motion of the cart while it is being pulled by the string? Assume that the frictional force is small compared to the pulling force. The cart moves at constant velocity. b. The cart slows down gradually to a stop. c./ The cart's velocity increases for a while, then decreases to a stop d. The cart's velocity continually increases. When the cart reaches point B, the string breaks. Which of the following describes the motion of the cart after the string breaks? a. The cart moves at constant velocity. b. The cart immediately begins to slow down. The cart continues at constant speed for a while, then slows down. d. The cart continues to speed up. 6. Eventually, the cart reaches the edge of the table. After it flies off the edge table, which of the following forces act on the cart while it is in mid-air if air resistance is negligible? a. Motion Force by the cart b. Tension Force by the string C. Normal Force by the table d. Frictional Force by the table surface e. Gravitational Force by the earth