1. The problem statement, all variables and given/known data How would you go about figuring out the ratio of components (rotational and translational energy) of total kinetic energy? 2. Relevant equations 3. The attempt at a solution i started with KEtotal=KEr+KEtr. KEr=1/2Iw^2; KEtr=1/2mv^2 use I for a disk-I=1/2mr^2 I put KEtr over KEr KEtr/KEr for a ratio (1/2 mv^2)/1/2Iw^2 substitute in 1/mr^2 for I and v/r for w (1/2 mv^2)/(1/2)(1/2mr^2)(v/r)^2 cancel m, v and r and 1/2 left with (1)/(1/2) ratio is 2:1 KEtr:KEr ??