Biomedical Engineering Reference
In-Depth Information
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Exercise 6.2
An athlete is doing push-ups on the ground, as can be seen in the
figure of Exercise 6.2. The mass of this athlete is 60 kg and the line of action of the
weight force passing through the body's center of gravity is located on the ground at
1.0 m from the toes and at 0.6 m from the hands. Find the contact forces exerted by
the floor on the toes and hands, for the posture shown in the figure.
C.G.
1.0 m
0.6 m
6.4 System of Nonparallel Forces
The forces that occur inside or on the body are not always parallel, but form an
angle between them. One way to obtain an exact solution of such situations is to
decompose the forces in some convenient orthogonal directions. An interesting way
