the anatomical structures in the lower leg and foot that are involved in standing on tiptoe, with the heel raised slightly off the floor so that the foot effectively contacts the floor only at point P. Assume distance a=-5.0 cm, distance b=15 cm, and the person’s weight W= 900 N. Of the forces acting on the foot, what are the (a) magnitude and (b) direction (up or down) of the force at point A from the calf muscle and the (c) magnitude and (d) direction (up or down) of the force at point B from the lower leg bones?

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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the
anatomical structures in the
lower leg and foot that are
involved in standing on tiptoe,
with the heel raised
slightly off the floor so that
the foot effectively contacts
the floor only at point P.
Assume distance a=-5.0 cm,
distance b=15 cm, and the
person’s weight W= 900 N.
Of the forces acting on the
foot, what are the (a) magnitude
and (b) direction (up or down) of the force at point A from
the calf muscle and the (c) magnitude and (d) direction (up or
down) of the force at point B from the lower leg bones?

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