Question

A particle having mass iii and charge q is released from the origin in a region in which electric field and magnetic field are given by  vector B = - B₀ vector j and vector E = E₀ vector k. Find the speed of the particle as a function of its z coordinate.

Answer 1

Velocity will be along x – z plane

F_z = (qE₀ – u_xB₀)

Since u_x = 0, F_z = qE₀

[distance along Z direction be z]

Comments

Since force is not constant for t>0 in the Z direction.So how you have used NLM.