posted by tom .
A war-wolf or trebuchet is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling large vegetables and pianos as a sport. A simple trebuchet is shown in the figure. Model it as a stiff rod of negligible mass, 3.05 m long, joining particles of mass 75.0 kg and 0.100 kg at its ends. It can turn on a frictionless, horizontal axle perpendicular to the rod and 13.0 cm from the large-mass particle. The rod is released from rest in a horizontal orientation. Find the maximum speed that the 0.100 kg object attains.
-i am completely lost at how to attempt this problem please help!