Question

A person is standing on a level floor. His head,upper torso,

Answer 1

Answer:

g = 0.98 m

Explanation:

given data:

upper portion weight 438 N and its center of gravity is 1.17 m

upper legs weight 144 N and its center of gravity is 0.835 m

lower leg weight 88 N and its center of gravity is 0.270 m

position of center of gravity of whole body can be determine by using following relation

$g = \frac{\sum ({m_i g_i)}}{\sum m_i}$

where $m_i$ is mass of respective part and $g_i$ is center of gravity

$g = \frac{\sum{ 438\times 1.17 + 144\times 0.835 + 88\times 0.270}}{438+144+88}$

g = 0.98 m