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Force Graph Questions Part 1: Diagram for Questions The graph above shows the net force exerted on an object with a mass of 4.0 kg. The magnitude of the force depends upon the distance the object is from the origin. Assume there is negligible friction. Assume the object is moving to the right with an initial velocity of 20 m/s. Identifying Sections Use the letter of the section as your answer or choose “E” for none of the above. Enter your response in the [ ] space provided. 1. The graph can be divided into four different regions according to how the force is behaving in that region. In what region is the object behaving according to Newton’s First Law? [ ] 2. In which section(s) is the object behaving according to Newton’s Second Law with constant acceleration? [ ] 3. In which section(s) is the object behaving according to Newton’s Second Law with increasing acceleration? [ ] 4. In which section(s) is the force acting in the same direction as the motion? [ ] 5. In which section does the acceleration have the greatest magnitude? [ ] 6. When the object is at the 2-meter mark, what is its acceleration? a) 0 b) 2 m/s2 c) 4 m/s2 d) 5 m/s2 e) 10 m/s2 [ ] 7. In which section(s) is the object’s velocity increasing? [ ] 8. In which section(s) is the object’s velocity constant? [ ] 9. In which section(s) is the object’s velocity decreasing? [ ] Part 2: Describing the Motion 10. Describe in sentence form what is happening in each section. Write a brief paragraph to describe the force, the velocity, and the acceleration in each section. A. B. C. D.

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