In the first class lever the fulcrum is located between the effort and the resistance.In second class lever The second class of lever has the fulcrum at one end, the effort applied at the other end, and the resistance somewhere between those points. [ The third class of levers has the fulcrum at one end of the lever, and the weight or resistance to be overcome is at the other end, with the effort applied at some point between. ]
I would tell their parents (hopefully they are good parents), but I would tell them to act as if they figured it out by themselves, so my friend won't know that I told them and won't hate me.
