Paleontologists estimate that if a Tyrannosaurus rex were to trip and fall, it would have experienced a net force of approximately 261,200 N acting on its torso when it hit the ground. Suppose the torso has a mass of 3730 kilogram.
(a) Calculate the magnitude of the torso upward acceleration as it comes to rest. (For comparison, humans lose consciousness with an acceleration of about 7g)
(b) Suppose the torso is in free fall for a distance 1.61 meter as it falls to the ground, find how much time is required for the torso to come to rest once it contacts the ground?