University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
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Chapter 6, Problem 29P
Two muscles in the back of the leg pull upward on the Achilles tendon, as shown below. (These muscles are called the mediaI and lateral heads of the gastrocnemius muscle.) Find the magnitude and direction of the total force on the Achilles tendon. What type of movement could be caused by this force?
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IMPORTANT NOTE: DRAW the graphical representation
Problem 7: Two muscles in the back of the leg pull upward on the Achilles tendon, as
F,(200 N)
F,(200 N)
shown in the figure. (These muscles are called the medial and lateral heads of the gastrocnemius
muscle.)
20 20
Find the magnitude, in newtons, of the total force on the Achilles tendon.
F =
The mandible (lower jaw) is attached to the temporomandibular joint (TMJ). The masseter muscle is responsible for pulling the mandible upward when you are talking or eating. It is attached at a horizontal distance of about 2.40 cm from the TMJ. The horizontal distance from the TMJ to your incisors is 6.60 cm. If the masseter muscle exerts a force of 198 N on your mandible when you bite into an apple at a constant rate, then what is the magnitude of the force exerted by your incisors on your food, assuming that both forces are vertical?
Chapter 6 Solutions
University Physics Volume 1
Ch. 6 - Check Your Understanding Now calculate the scale...Ch. 6 - Check Your Understanding Calculate the...Ch. 6 - Check Your Understanding Determine a general...Ch. 6 - Check Your Understanding The soccer player stops...Ch. 6 - Check Your Understanding Find the direction of the...Ch. 6 - Check Your Understanding If atmospheric resistance...Ch. 6 - Check Your Understanding A block of mass 1.0 kg...Ch. 6 - Check Your Understanding The snowboarder is now...Ch. 6 - Check Your Understanding A car moving at 96.8 km/h...Ch. 6 - Check Your Understanding Find the terminal...
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