College Physics, Young,Geller CH02-CH05

College Physics, Young,Geller CH02-CH05 - MOTION ALONG A...

Info icon This preview shows page 1. Sign up to view the full content.

2-1 M OTION ALONG A S TRAIGHT L INE 2 Answers to Multiple-Choice Problems 1. C, D 2. C 3. C, D 4. A, B 5. D 6. C 7. A, D 8. A 9. B 10. C 11. A 12. A, C, D 13. B, D 14. D 15. C Solutions to Problems 2.1. Set Up: Let the direction be to the right in the figure. Solve: (a) The lengths of the segments determine the distance of each point from O : and (b) The displacement is the sign of indicates its direction. The distance is always positive. (i) A to B : Distance is 50 cm. (ii) B to C : Distance is 30 cm. (iii) C to D : Distance is 20 cm. (iv) A to D : Reflect: When the motion is always in the same direction during the interval the magnitude of the displacement and the distance traveled are the same. In (iv) the ant travels to the right and then to the left and the magnitude of the dis- placement is less than the distance traveled. 2.2. Set Up: From the graph the position at each time t is: and Solve: (a) The displacement is (i) (ii) (iii) (iv) (b) (i) (ii) (iii) zero (stays at 2.3. Set Up: Let the direction be to the right. Solve: Average velocity is Reflect: The average speed is greater than the magnitude of the average velocity.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '07
  • Shoberg
  • Physics, Velocity

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern