1. The problem statement, all variables and given/known data Converting the energy of one food calorie into mechanical energy, starting from rest, to what speed could you accelerate a 133-lbs person? 2. Relevant equations 1 calorie= 4.184J 1 lbs= 0.453592kg K=1/2mv^2 3. The attempt at a solution here what I did, I converted the lbs to kg which was 60.33kg. I was under the impression to use kinetic energy. 4.184J=1/2(60.33kg)v^2 4.184J/30.165kg=v^2 sqrt 4.184J/30.165kg= 0.372m/s This is how I solved my problem, but I got 1 out of 10. Can someone explain to me what I did wrong?