Paleontologists believe that Tyrannosaurus rex stood and
Chapter 11, Problem 97GP(choose chapter or problem)
Paleontologists believe that Tyrannosaurus rex stood and walked with its spine almost horizontal, as indicated in Figure 11–41, and that its tail was held off the ground to balance its upper torso about the hip joint. Given that the total mass of T. rex was 5400 kg, and that the placement of the center of mass of the tail and the upper torso was as shown in Figure 11–41, find the mass of the tail required for balance.
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