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Chapter 3: Two-Dimensinal Kinematics

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College Physics (Urone)
Pages: 87 - 126
College Physics (Urone)

College Physics (Urone)

Book edition 1st Edition
Author(s) Paul Peter Urone
Pages 1272 pages
ISBN 9781938168000

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Illustration

79 Questions for Chapter 3: Two-Dimensinal Kinematics

  1. Give an example of a nonzero vector that has a component of zero.

    Found on Page 119

  2. Find the magnitudes of velocities\({v_A}\)and\({v_B}\)in Figure 3.57.

    Found on Page 121

  3. Explain why a vector cannot have a component greater than its own magnitude.

    Found on Page 121

  4. Question: Find the components of \({v_{tot}}\) along the \(x\)- and \(y\)-axes in Figure 3.55.

    Found on Page 121

  5. For a fixed initial speed, the range of a projectile is determined by the angle at which it is fired. For all but the maximum, there are two angles that give the same range. Considering factors that might affect the ability of an archer to hit a target, such as wind, explain why the smaller angle (closer to the horizontal) is preferable. When would it be necessary for the archer to use the larger angle? Why does the punter in a football game use the higher trajectory?

    Found on Page 119

  6. Find the north and east components of the displacement from San Francisco to Sacramento shown in Figure 3.57.

    Found on Page 122

  7. During a lecture demonstration, a professor places two coins on the edge of a table. She then flicks one of the coins horizontally off the table, simultaneously nudging the other over the edge. Describe the subsequent motion of the two coins, in particular discussing whether they hit the floor at the same time.

    Found on Page 120

  8. Found on Page 122

  9. What frame or frames of reference do you instinctively use when driving a car? When flying in a commercial jet airplane?

    Found on Page 120

  10. Repeat Exercise using analytical techniques, but reverse the order of the two legs of the walk and show that you get the same final result. (This problem shows that adding them in reverse order gives the same result—that is, B+A=A+B.) Discuss how taking another path to reach the same point might help to overcome an obstacle blocking you other path.

    Found on Page 123

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