ASK YOUR TEACHER PRACTICE ANOTHER The chewing muscle, the masseter, is one of the strongest in the human body. It is attached to the mandible (lower jawbone) as shown in figure (a). The jawbone is pivoted about a socket just in front of the auditory canal. The forces acting on the jawbone are equivalent to those acting on the curved bar in figure (b). DETAILS SERCP11 8.3.P.033. Mandible Masseter -7.50 cm - 3.50 cm MY NOTES is the force exerted by the food being chewed against the jawbone, is the force of tension in the masseter, and is the force everted by the socket on the mandible. Find and i (in N) for a person who bites down on a piece of steak with a force of 53.5 N magnitude of R

ASK YOUR TEACHER PRACTICE ANOTHER The chewing muscle, the masseter, is one of the strongest in the human body. It is attached to the mandible (lower jawbone) as shown in figure (a). The jawbone is pivoted about a socket just in front of the auditory canal. The forces acting on the jawbone are equivalent to those acting on the curved bar in figure (b). DETAILS SERCP11 8.3.P.033. Mandible Masseter -7.50 cm - 3.50 cm MY NOTES is the force exerted by the food being chewed against the jawbone, is the force of tension in the masseter, and is the force everted by the socket on the mandible. Find and i (in N) for a person who bites down on a piece of steak with a force of 53.5 N magnitude of R

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

ASK YOUR TEACHER PRACTICE ANOTHER
The chewing muscle, the masseter, is one of the strongest in the human body. It is attached to the mandible (lower jawbone) as shown in figure (a). The jawbone is pivoted about a
socket just in front of the auditory canal. The forces acting on the jawbone are equivalent to those acting on the curved bar in figure (b).
DETAILS SERCP11 8.3.P.033.
Mandible
magnitude of R
magnitude of
Masseter
Need Help?
-7.50 cm -
3.50 cm
is the force exerted by the food being chewed against the jawbone, is the force of tension in the masseter, and is the force everted by the socket on the mandible. Find and i
(in N) for a person who bites down on a piece of steak with a force of 53.5 N
MY NOTES

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Unlike most of the other muscles in our bodies, the masseter muscle in the jaw, as illustrated in the figure, is attached relatively far from the joint, enabling very large forces to be exerted by the back teeth. This is shown in the figure below, where a person is biting down on a bullet placed between the back teeth. (FM = 200 N and r. = 3.7 cm.) M= 2.9 cm Masseter muscle гeaction (a) Using the information in the figure, calculate the magnitude of the force exerted by the teeth on the bullet. (b) Calculate magnitude of the force on the joint.