Chapter 22, Problem 84P

In Fig. 22-68, a uniform, upward electric field $\stackrel{\to }{E}$ of magnitude 2.00 × 10³ N/C has been set up between two horizontal plates by charging the lower plate positively and the upper plate negatively. The plates have length L = 10.0 cm and separation d = 2.00 cm. An electron is then shot between the plates from the left edge of the lower plate. The initial velocity ${\stackrel{\to }{v}}_0$ of the electron makes an angle θ = 45.0° with the lower plate and has a magnitude of 6.00 × 10⁶ m/s. (a) Will the electron strike one of the plates? (b) If so, which plate and how far horizontally from the left edge will the electron strike?

Figure 22-68 Problem 84.