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A marble moves along the x -axis. The potential-energy
Chapter 9, Problem 38E(choose chapter or problem)
A marble moves along the x -axis. The potential-energy function is shown in Fig. E7.36. (a) At which of the labeled x-coordinates is the force on the marble zero? (b) Which of the labeled x-coordinates is a position of stable equilibrium? (c) Which of the labeled x-coordinates is a position of unstable equilibrium?
Questions & Answers
QUESTION:
A marble moves along the x -axis. The potential-energy function is shown in Fig. E7.36. (a) At which of the labeled x-coordinates is the force on the marble zero? (b) Which of the labeled x-coordinates is a position of stable equilibrium? (c) Which of the labeled x-coordinates is a position of unstable equilibrium?
ANSWER:Solution 38E Problem (a) Step 1: To find the coordinates(x) where force on the marble is zero Consider force on the marble is F to be zero, the slope of potential energy versus x must x be zero. Points b and d are having zero slope value on the graph. Therefore v