"Chapter 8, Problem 39 The figure here shows a plot of potential energy U versus position x of a 0.851 kg particle that can travel only along an x axis. (Nonconservative forces are not involved.) Three values are UA = 15 J, Ug = 35 J and Uc = 45 J. The particle is released at x = 4.5 m with an initial speed of 7.5 m/s, headed in the negative x direction. (a) If the particle can reach x = 1.0 m, what is its speed there, and if it cannot, what is its turning point? What are the (b) magnitude and (c) direction of the force on the particle as it begins to move to the left of x = 4.0 m? Suppose, instead, the particle is headed in the positive x direction when it is released at x = 4.5 m at speed 7.5 m/s. (d) If the particle can reach x = 7.0 m, what is its speed there, and if it cannot, what is its turning point? What,are the (e) magnitude and (f) direction of the force on the particle as it begins to move to the right of x = 5.0 m2 Ucr----- UB UA 2 4. 6. x (m) (a) Number 1 Unit (b) Number •2 Unit (c) Direction (d) Number 3 Unit (e) Number *4 Unit (f) Direction (r) n

"Chapter 8, Problem 39 The figure here shows a plot of potential energy U versus position x of a 0.851 kg particle that can travel only along an x axis. (Nonconservative forces are not involved.) Three values are UA = 15 J, Ug = 35 J and Uc = 45 J. The particle is released at x = 4.5 m with an initial speed of 7.5 m/s, headed in the negative x direction. (a) If the particle can reach x = 1.0 m, what is its speed there, and if it cannot, what is its turning point? What are the (b) magnitude and (c) direction of the force on the particle as it begins to move to the left of x = 4.0 m? Suppose, instead, the particle is headed in the positive x direction when it is released at x = 4.5 m at speed 7.5 m/s. (d) If the particle can reach x = 7.0 m, what is its speed there, and if it cannot, what is its turning point? What,are the (e) magnitude and (f) direction of the force on the particle as it begins to move to the right of x = 5.0 m2 Ucr----- UB UA 2 4. 6. x (m) (a) Number 1 Unit (b) Number •2 Unit (c) Direction (d) Number 3 Unit (e) Number *4 Unit (f) Direction (r) n

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Conservation Of Energy

Section: Chapter Questions

Problem 20P: As shown in Figure P7.20, a green bead of mass 25 g slides along a straight wire. The length of the...

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