1. The problem statement, all variables and given/known data How many Joules of energy does a 100 watt light bulb use per hour? How fast would a 70-kg person have to run to have that same amount of kinetic energy? 2. Relevant equations How fast would a 70-kg person have to run to have the same amount of kinetic energy? 3. The attempt at a solution 1 watt = 1 J/S so... 100 J/S * 3600s = 360,000 J 360,000 kg m^2/s^2 ÷ 70 = 5142.86 m^2/s^2 my only question would be do you just square root the value and would it remove both ^2?