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- 1. If I triple the velocity of an object, by how much of a factor did the kinetic energy increase? 3 6 4 9 3 6 4 9 Solution The kinetic energy of an object is given by 1/2*m*v^2. Where v is velocity and m is mass of the object. If the velocity is increased to 3v (triple), the kinetic energy becomes 1/2*m*(3v)^2 = 9*(KE) original. Answer is 9.