Aparticle leaves the origin with a speed of 2.1 times 106 m/s at 32 degrees to the positive x axis. it moves in a uniform electric field directed along positive y axis. find ey such that the particle will cross the x axis at x = 1.5 cm if the particle is an electron.

1. find ey such that the particle will cross the x axis at x = 1.5 cm if the particle is an electron.2. find ey such that the particle will cross the x axis at x = 1.5 cm if the particle is a proton.