A ball is dropped from rest from a bridge that is 25.0 m above the ground below. What is the velocity of the ball the instant before it hits the ground

An electron moving at 5.06 103 m/s in a 1.23 t magnetic field experiences a magnetic force of 1.40 10-16 n. what angle does the velocity of the electron make with the magnetic field? there are two answers between 0° and 180°. (enter your answers from smallest to largest.)