Eles. Your arms are ertically and can und the shoulder Figure El1.22 you grasp the cable achine in your hand from your shoulder he deltoid muscle ed to the humerus from the shoulder makes a 12.0" angle bone (Fig. El1.22). ave set the tension 125 64.0 cm
Eles. Your arms are ertically and can und the shoulder Figure El1.22 you grasp the cable achine in your hand from your shoulder he deltoid muscle ed to the humerus from the shoulder makes a 12.0" angle bone (Fig. El1.22). ave set the tension 125 64.0 cm
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Transcribed Image Text:11.22 * BIO A Good Workout. You are doing excrcises on
a Nautilus machine in a gym to strengthen your deltoid (shoul-
der) muscles. Your arms are
raised vertically and can
pivot around the shoulder
joint, and you grasp the cable
of the machine in your hand
64.0 cm from your shoulder
joint. The deltoid muscle
is attached to the humerus
Figure El1.22
125
15.0 cm from the shoulder
joint and makes a 12.0° angle
with that bone (Fig. El1.22).
If you have set the tension
in the cable of the machine
to 36.0 N on cach arm, what
64.0 cm
-Humerus
Deltoid
is the tension in cach deltoid
muscle if you simply hold
your outstretched arms in
placc? (Hint: Slart by making
a clear free-body diagram of
уour arm.)
muscle
-12.0°
Shoulder
joint
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