Eddie Hall, the strongest man in the world is the first man to lift 500kg. That itself is an amazing feat, and by using the height of the 500kg in relevance to the ground, we can calculate the work lifted. Eddie Hall's height is 6ft 3, and since deadlifts require the person to lift a bar at their torse, we can estimate the lift height to be 3 feet or .91m. Knowing that the weight is (500kg)(9.8N), we can do (500kg)(9.8N) (.91m) to get 4459J which is the work lifted.