onsider an adult of 70.0 kg mass and 1.95 m tall sitting on the floor, with arms crossed and legs extended as illustrated in the figure. It is not very easy to stay in this pose for a long time. The figure shows a sagittal section (dashed line) and the attached table provides the x and y coordinates of the center of gravity of some segments, as well as the respective masses. The center of gravity of the head and arms crossed with the neck and trunk are aligned vertically to the paramedial line (vertical axis) at a distance of 81.0 cm from the plantar part of the foot. a) Determine the coordinates of the head - neck - trunk and crossed arms center of gravity, b) Determine the coordinates of the center of gravity of the thigh - leg - foot set, c) Calculate the coordinates of the center of gravity of this person's body . Explain why this position is not so comfortable for the person who performs it.
Consider an adult of 70.0 kg mass and 1.95 m tall sitting on the floor, with arms crossed and legs extended as illustrated in the figure. It is not very easy to stay in this pose for a long time. The figure shows a sagittal section (dashed line) and the attached table provides the x and y coordinates of the center of gravity of some segments, as well as the respective masses. The center of gravity of the head and arms crossed with the neck and trunk are aligned vertically to the paramedial line (vertical axis) at a distance of 81.0 cm from the plantar part of the foot. a) Determine the coordinates of the head - neck - trunk and crossed arms center of gravity, b) Determine the coordinates of the center of gravity of the thigh - leg - foot set, c) Calculate the coordinates of the center of gravity of this person's body . Explain why this position is not so comfortable for the person who performs it.
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