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Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 9 - Problem 34p
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 9 - Problem 34p

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

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. . When a person elevates himself just barely off the floor on the "ball of one foot," estimate the tension  in the Achilles tendon (pulling upward), and the (downward) force  exerted by the lower leg bone on the foot. Assume the person has a mass of  and  is twice as long as .

Step-by-Step Solution:

Step-by-step solution

Step 1 of 3

FN ; the reaction force exerted from the ground to the ball of the foot at point A.

When the person starts to elevate from the ground all the weight of the body stays on the ball of the foot.  So

FN: the downward force exerted by the bone  at point B

FT : the force exerted by the tendon upward to lift the body at point T.

Step 2 of 3

Step 3 of 3

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