Calculate initial conditions H, V0 and angle α between the direction V0 and the Ox axis for launch an electric charge, to hit the UFO by exposing him to different fields. Launch the projectile to check your calculations.
No fields affect the projectile
Homogeneous electrostatic field, lines of force of which are directed down
Homogeneous magnetostatic field, induction lines of which are directed from the observer
Mutually perpendicular electrostatic and magnetostatic fields