Hello all. I am new to this site and was hoping someone could help me with a homework problem I'm trying to do. Here's the problem: A small ferryboat is 4.0m wide, 6.0m long. When a loaded truck pulls onto it, the boat sinks an additional 4.0cm into the river. What is the weight of the truck? I found the area by taking 4m(6m)=24m^2. I understand I need to use the bouyancy formula B=PVG. In order to get the pressure would I take P=P+PGH? The instructor said to take the volume and plug that into the result from Archimede's preinciple which says that the weight of the displaced fluid will equal the weight of the truck. I don't understand what she means . Can anyone help? Thank you so much!