1. Gabriella and Michelle are a few meters apart, at 4. A skier accelerates from a stop at a rate of one end of a football field. Pierre is at the other 3 m/s2 for 3 seconds. What is her speed at the end of the field, and he sees both of them mov- end of that time? ing toward him at 4 m/s. From Michelle's point A. 9 m/s of view, how is Gabriella moving? B. 1 m/s A. Gabriella is moving toward her at 4 m/s. C. 9 m B. Gabriella is moving away from her at 4 m/s. D. 9 m/s C. Gabriella is moving toward her at 8 m/s. D. Gabriella is not moving. 5. Represent Relationships A rolling ball decelerates at a constant rate. If you graphed 2. Apply Concepts A boy holds a 20 N rock its speed versus time, what would the graph while standing still on a trampoline. Suppose look like? What point would represent its he hands the rock to someone else. Explain greatest instantaneous velocity? how he will move, in terms of the forces acting on him. 6. A bus drove from Philadelphia to Washington, D.C. in the stages shown in the table. Distance (km) Time (hr) 3. Synthesize Information A pendulum has its 100 2 greatest velocity at the bottom of its swing. At 55 that point, its speed is constant (it is neither 75 2 accelerating nor decelerating). Draw a dia- gram to show why there is no acceleration at What was the average speed of the bus for that point. Explain in terms of the pendulum's the entire trip? energy and the forces acting on it. 7. Identify Criteria A woman is walking at 4 m/s. She is accelerating at a rate of 1 m/s. To find out what her velocity is after 3 seconds, what else do you need to know