1. The problem statement, all variables and given/known data An elevator, with people in it, has a mass of 1400 kgs. The motor is hooked up to the power grid that provides 220 volts of power. The elevator has to go up 30 meters at 4m/s. How many watts of potential (not sure if it's called that) are required to get the elevator moving and what is the maximum current passing through the motor? 2. Relevant equations P=VI Potential energy=mgh 3. The attempt at a solution Not sure. I know the answer but don't know how to get to it. My idea is to calculate the change in potential energy that occurs when moving up 30m. That gets me 420kJ. That's as far as I got. Answer: 56kW and 255A.