7.76 A particle moves along the x-axis while acted on by a sin- gle conservative force parallel to the x-axis. The force corresponds to the potential-energy function graphed in Fig. P7.76. The particle is released from rest at point A. (a) What is the direction of the force on the particle when it is at Figure P7.76 U (J) 4.0 2.0 0 -2.0 -x (m) 1.5 2.0 2.5 B point A? (b) At point B? (c) At what value of x is the kinetic energy of the particle a maximum? (d) What is the force on the particle when it is at point C? (e) What is the largest value of x reached by the particle during its motion? (f) What value or values of x correspond to points of stable equilibrium? (g) Of unstable equilibrium?

7.76 A particle moves along the x-axis while acted on by a sin- gle conservative force parallel to the x-axis. The force corresponds to the potential-energy function graphed in Fig. P7.76. The particle is released from rest at point A. (a) What is the direction of the force on the particle when it is at Figure P7.76 U (J) 4.0 2.0 0 -2.0 -x (m) 1.5 2.0 2.5 B point A? (b) At point B? (c) At what value of x is the kinetic energy of the particle a maximum? (d) What is the force on the particle when it is at point C? (e) What is the largest value of x reached by the particle during its motion? (f) What value or values of x correspond to points of stable equilibrium? (g) Of unstable equilibrium?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 79P: An electron in a television tube is accelerated uniformly from rest to a speed of 8.4107 m/s over a...

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