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New KE will be 100eV x (1.6x10^-19)? Do I add the velocity from the new KE to the current velocity traveling at 0.2nm?

KE = 100eV x (1.6x10^-19) v(new) = √(2KE/9.1×10^-31 ) = 5.9x10^6m/sv(original) = h/λm = 6.6x10^-34 / (0.2x10^-9 x 9.1x10^-31) = 3.64x10^6m/s