Q. Throughout space there is a uniform electric field in-y direction of strength E = 460 N/C. There is no gravity. At t = 0, a particle with mass m = 5 g and charge q = -15 µC is at the origin moving with a velocity v0 = 25 m/sat an angle q = 30° above the x-axis. At t = 6.50 s, what are the x- and y-coordinates of position of the particle?

Q. Protons are projected with an initial velocity v0 = 10360 m/s into a region where a uniform electric field E = 670 N/C is present. The protons are to hit a target that lies a horizontal distance of 1.27 mm from the point where protons are launched.