Chapter 24, Problem 81P

GO Electron in a well. Figure 24-65 shows electric potential V along an x axis. The scale of the vertical axis is set by V_s = 8.0 V. An electron is to be released at x = 4.5 cm with initial kinetic energy 3.00 eV. (a) If it is initially moving in the negative direction of the axis, does it reach a turning point (if so. what is the x coordinate of that point) or does it escape from the plotted region (if so, what is its speed at x = 0)? (b) If it is initially moving in the positive direction of the axis, does it reach a turning point (if so, what is the x coordinate of that point) or does it escape from the plotted region (if so, what is its speed at x = 7.0 cm)? What are the (c) magnitude F and (d) direction (positive or negative direction of the x axis) of the electric force on the electron if the electron moves just to the left of x = 4.0 cm? What are (e) F and (f) the direction if it moves just to the right of x = 5.0 cm?

Figure 24-65 Problem 81.