A positively charged particle moving along x-axis with a certain velocity enters a uniform electric field directed along positive y-axis. Its

Given data:

Velocity enters the electric field 

Their axis have positive

Concepts used: Electric field

Detailed answer:

The force on a positive charge moving along the y-axis is given by 

$F=qE$.

So the charge will experience an acceleration in the direction of y-axis.

The vertical component changes and the horizontal (along the x-axis) component remains unchanged.