The chewing muscle, the masseter, is one of the stron- gest in the human body. It is attached to the mandible (lower jawbone) as shown in Figure P8.33a. 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 P8.33b. F. is the force exerted by the food being chewed against the jawbone, T is the force of ten- sion in the masseter, and R is the force exerted by the socket on the mandible. Find T and R for a person who bites down on a piece of steak with a force of 50.0 N. 3.50 cm – 7.50 cm Masseter Mandible Б a Figure P8.33

The chewing muscle, the masseter, is one of the stron- gest in the human body. It is attached to the mandible (lower jawbone) as shown in Figure P8.33a. 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 P8.33b. F. is the force exerted by the food being chewed against the jawbone, T is the force of ten- sion in the masseter, and R is the force exerted by the socket on the mandible. Find T and R for a person who bites down on a piece of steak with a force of 50.0 N. 3.50 cm – 7.50 cm Masseter Mandible Б a Figure P8.33

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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Question

The chewing muscle,
the masseter, is one of the stron-
gest in the human body. It is
attached to the mandible (lower
jawbone) as shown in Figure P8.33a. 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 P8.33b. F. is the force exerted by the
food being chewed against the jawbone, T is the force of ten-
sion in the masseter, and R is the force exerted by the socket
on the mandible. Find T and R for a person who bites down
on a piece of steak with a force of 50.0 N.
3.50 cm
– 7.50 cm
Masseter
Mandible
Б
a
Figure P8.33

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