Center of Mass and Center of Gravity (basic concepts of biomechanics) Physiotherapy class
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summary of the video with the time for reference:

1.Gravity
Downward pull of gravity on human body and objects
Constant
Always acts on the body

2.Center of Gravity
Point of application of gravity on object or its center of mass

3.Center of mass
Hypothetical segment where all the mass of object/segment appears to be concentrated
In human body it is anterior to sacral vertebra
changes with position and changes with motion
midpoint in symmetrical objects and might not be at the midpoint in asymmetrical objects

3.Line of Gravity
Gravitational Vector
Acts vertically downward

#centreofmass #centreofgravity