As a percentage of total body mass, the head is 10%, the two arms are 10%, the trunk is 56%, and the two legs are 24%. The center of mass for each segment is given as an (x,y) coordinate, both units in cm: head = (0, 165), arms = (0, 115), trunk = (0, 95), and legs = (0, 35). Assume the body mass for the individual is 89 kg and their total height is 180 cm. Assume all quantities are correct to 3 significant figures. a. Determine the x and y coordinates of the center of mass. Enter to 3 significant figures Center of mass (x, y) = ( cm, Enter to 3 significant figures Center of mass (x, y) = b. When the body bends over to pick up an object, the body's center of mass changes. Determine the x and y coordinates of the center of mass given that the body segments have centers of mass at the following coordinates: head = (95, 75), arms=(70, 50), trunk = (35, 75), and legs = (0, 35). cm, cm) X cm)

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As a percentage of total body mass, the head is 10%, the two arms are 10%, the trunk is 56%, and the
two legs are 24%. The center of mass for each segment is given as an (x,y) coordinate, both units in
cm: head = (0, 165), arms = (0, 115), trunk = (0, 95), and legs = (0, 35). Assume the body mass for the
individual is 89 kg and their total height is 180 cm.
Assume all quantities are correct to 3 significant figures.
a. Determine the x and y coordinates of the center of mass.
Enter to 3 significant figures
Center of mass (x, y) =
cm,
Enter to 3 significant figures
Center of mass (x, y) =
b. When the body bends over to pick up an object, the body's center of mass changes. Determine the
x and y coordinates of the center of mass given that the body segments have centers of mass at the
following coordinates: head = (95, 75), arms = (70, 50), trunk = (35, 75), and legs = (0, 35).
cm,
X
cm)
X
cm)
Transcribed Image Text:X As a percentage of total body mass, the head is 10%, the two arms are 10%, the trunk is 56%, and the two legs are 24%. The center of mass for each segment is given as an (x,y) coordinate, both units in cm: head = (0, 165), arms = (0, 115), trunk = (0, 95), and legs = (0, 35). Assume the body mass for the individual is 89 kg and their total height is 180 cm. Assume all quantities are correct to 3 significant figures. a. Determine the x and y coordinates of the center of mass. Enter to 3 significant figures Center of mass (x, y) = cm, Enter to 3 significant figures Center of mass (x, y) = b. When the body bends over to pick up an object, the body's center of mass changes. Determine the x and y coordinates of the center of mass given that the body segments have centers of mass at the following coordinates: head = (95, 75), arms = (70, 50), trunk = (35, 75), and legs = (0, 35). cm, X cm) X cm)
The center of mass for a human body can be determined by a segmental method. Using cadavers, it
is possible to determine the mass of individual body segments (as a proportion of total body
mass) and the center of mass for each segment (often expressed as a distance from one end of the
segment). Finding the overall body center of mass can be a complex calculation, involving more than
10 body segments. Below, we will look at a simplified model that uses just six segments: head, trunk,
two arms, and two legs.
X
X
Transcribed Image Text:The center of mass for a human body can be determined by a segmental method. Using cadavers, it is possible to determine the mass of individual body segments (as a proportion of total body mass) and the center of mass for each segment (often expressed as a distance from one end of the segment). Finding the overall body center of mass can be a complex calculation, involving more than 10 body segments. Below, we will look at a simplified model that uses just six segments: head, trunk, two arms, and two legs. X X
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