A crane at a construction site lifts a concrete block with a mass of 433kg from the ground to the top of a building with a height of 22.2mHow much work did the motor of the crane do? Assuming the work done was 94299.6JIf the duration of the lift was 2.45 minutes, then what was the average power performed by the crane?
what riding shotgun ? they used to call them rumble seats, old car seats bolted to the bed of a truck, though they are basically illegal in all 50 states nowcheers babe!
work done is m x g x h energy power x time (time is seconds !)
