Unlike most of the other muscles in our bodies, the masseter muscle in the jaw, as illustrated in the figure, is attachedrelatively 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 cmMassetermuscleгeaction(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.

GivenFM=200 NrR=3.7 cm=0.037 mrM=2.9 cm=0.029 m

Answered: aw, elatively far from the joint,…

aw, elatively far from the joint, enabling very large forces to be exerted by the back teeth. here a person is biting down on a bullet placed between the back teeth. (FM = 200 N %3D

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ISBN:9781938168277

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Chapter2: Vectors

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Question

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.

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