KNPE 153 Lecture Notes - Lecture 8: Ground Reaction Force, List Of Bus Routes In London
2 Dec 2016
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Mass is resistance to linear motion: an increased mass means less acceleration. =(cid:884)(cid:882) /2: apply a force of 100 n to a 5 kg ball, apply a force of 100 n to a 12. 5 kg ball. With human motion we often want to know cause of a segment"s motion: e. g. The arm mass to analyze a baseball pitch. We must know the segment"s mass: however, the weight of each individual segment is hard to do for any segment since it is attached to other segments. Each zone has a density and volume. Can compute whole segment mass & centre of mass. Compute weight of each, compute center of mass. Center of mass is a point through which the force of gravity acts. About that point, the system is in rotational equilibrium. Since an object is balanced about it center of mass, we can use this information to locate the center of mass.
