An elevator weighing 15,000 newtons is raised one story in 50 seconds. if the distance between stories is 3.0 meters, how much power is required of the motor?

Power is force multiplied by the velocity, expressed as P = F * d/t where d is distance and t is time. d/t is termed also as velocity. Substituting the given date where F is equal to 15000 newtons, distance is equal to 3 meters and t is equal to 50 seconds, power is equal to 900 Joules per second or 900 watts.