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5. A charged particle of mass $2kg$ and charge $3mC$ moves in an electric field $E=2a_{x}+4a_{y}V/m$. If the initial velocity of the charge at time $t=0s$ is $u_{0}=4a_{x}m/s$ and its initial position is $r_{0}=2a_{y}m$, what is the a) velocity of the charge as a function of time and b) the position of the charge as a function of time.

a) To find the velocity of the charge as a function of time, we can use the equation:F = ma = qEwhere F is the force on the charge, m is