A proton having mass m = 1.67 x 10-27 kg is being accelerated all along a straight line at 6.2 x 1012 m/s2 in a machine. When the proton consists of an initial speed of 7.9 x 106 m/s and travels 4.4 cm, what then are (i) its speed and (ii) the increase in the kinetic energy?