Center of mass |
 The polystyrene figure has equal mass lead fishing sinkers inserted as shown. The pen is placed through the center of mass, and the figure is balanced. If the foot is thrown with rotation, the center of mass will follow a parabolic path. In the absence of gravity, the center of mass would follow a straight line, at a constant velocity. |
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The distance from any arbitrary origin to the center of mass of a body composed of point masses is given by.... |