1. The problem statement, all variables and given/known data A molecule has mass 5.3 x 10^-26 Kg and KE 6.24 x10^-21. What is the velocity in m/s? 2. Relevant equations KE = mv^2 / 2 3. The attempt at a solution I plug the numbers into the equation and get an answer of 15.34, but the correct answer is 48.6 m/s. Is this the wrong equation?