Protons are projected with an initial speed vi = 9.55 x 103 m/s into a region where a uniform electric field E = -720j N/C is present, as shown in Figure P23.49. The protons are to hit a target that lies at a horizontal distance of 1.27 mm from the point where the protons cross the plane and enter the electric field in Figure P23.49. Find
(a) The two projection angles + that will result in a hit and
(b) The total time of flight (the time interval during which the proton is above the plane in Figure P23.49) for each trajectory.