Show on a diagram how your CM shifts when you move from a lying position to a sitting position.

The diagram showing the center of mass at lying and sitting positions is as given follows:

The quantity center of mass is described as the point at which the entire mass of a certain object is concentrated. The center of mass is affected by the variation in the mass distribution of the component.

If a person is lying on a straight surface, his/her center of mass is located inside the body's volume, just below the navel. On the other hand, if the person is in a sitting position with extended legs, his/her center of mass will be slightly outside the body's volume in front of the midsection. Also, the center of mass while sitting will be slightly higher than lying because when you sit, most of your weight is concentrated on the upper half of your body.

The following is the diagram of the center of mass (CM) while lying down.

The following is the diagram of the center of mass in the sitting position.