I found the following question in a textbook: Two men are carrying a uniform ladder of length 12m and weight 250N. One man holds the ladder 2.0m from the front end and the other man is 1.0m from the back of the ladder. Calculate the upward contact forces that each man exerts on the ladder. The answer section in the textbook says the forces are 110N and 140N. But how do you go about calculating that? I really need an explanation as I just don't understand. I can see the forces add up to 250N, but I'm not sure how to calculate each force. Maybe I'm just dumb. Any help would be greatly appreciated.