1. The problem statement, all variables and given/known data An electron's position is given by r(t)=r(0)+c1*t, θ(t)=θ(0)+c2*t, where r(0), c1, θ(0), and c2 are known constants. What is the kinetic energy of the electron? (mass=m) 2. Relevant equations KE=(1/2)Iω2=(1/2)mr2ω2 3. The attempt at a solution plugging in m for mass, r(0)+c1*t for radius, and c2 for ω (1/2)(m)(r(0)+c1*t)2(c2)2 This isn't the correct answer, so I'm fairly certain I've messed up on my "r" value somehow. It's supposed to equal (1/2)(m)(c12+r2c22) Where am I going wrong?