(II) The Achilles tendon is attached to the rear of the

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

ISBN: 9780130606204 3

Solution for problem 34P Chapter 9

Physics: Principles with Applications | 6th Edition

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Problem 34P

(II) The Achilles tendon is attached to the rear of the foot as shown in Fig. $9-66$ . When a person elevates himself just barely off the floor on the "ball of one foot," estimate the tension ${F}_{T}$ in the Achilles tendon (pulling upward), and the (downward) force ${F}_{B}$ exerted by the lower leg bone on the foot. Assume the person has a mass of $72\ kg$ and $D$ is twice as long as $d$ .