The electric field of two plane electromagnetic waves in vacuum are given by \(\vec{E}=E_0 \cos (\omega t-k x) \hat{j}\)…

The electric field of two plane electromagnetic waves in vacuum are given by \(\vec{E}=E_0 \cos (\omega t-k x) \hat{j}\) and \(\vec{E}_2=E_0 \cos (\omega t-k y) \hat{k}\). At \(t=0\), a particle of charge \(q\) is at origin with a velocity \(\vec{v}=0.8 c \hat{j}\). The instantaneous force experienced by the particle is