Answer:
603383.67253 m/s
Explanation:
m = Mass of proton = [tex]1.67\times 10^{-27}\ kg[/tex]
K = Kinetic energy = 1.9 keV
[tex]1\ ev=1.6\times 10^{-19}\ J[/tex]
Velocity of proton is given by
[tex]v=\sqrt{\frac{2K}{m}}\\\Rightarrow v=\sqrt{\frac{2\times 1.9\times 10^3\times 1.6\times 10^{-19}}{1.67\times 10^{-27}}}\\\Rightarrow v=603383.67253\ m/s[/tex]
The speed of the protons is 603383.67253 m/s