You are a paleontologist who has discovered a t-rex nesting site surrounded by crushed velociraptor heads. you want to find out if the crushing forces of the t-rex jaw could have been responsible for the carnage. the length of the jaw is 1.2 m, the moment arm of the masseter muscle is 15 cm, and the diameter of velociraptor head is 30 cm. (a) draw a free body diagram of t-rex mandible (lower jaw) when crushing a velociraptor head. treat the joint as a pi joint.