Current Attempt in Progress A proton (mass m = 1.67 x 10-27 kg) is being accelerated along a straight line at 3.40 x 1013 m/s2 in a machine. If the proton has an initial speed of 8.90 x 104 m/s and travels 1.80 cm, what then is (a) its speed and (b) the increase in its kinetic energy? (a) Number i Units (b) Number i Units