The human head weighs 4.8 kg and its center of mas 1.8 cm in front of the spinal column joint. If the trapezius muscle inserts 1
.1 cm behind the spinal cord joint, how much downward force does it need to exert in order to maintain equilibrium
2 answers:
Answer:
The downward force does it need to exert in order to maintain equilibrium is 76.974 N
Explanation:
The downward force does it need to exert in order to maintain equilibrium is:
Where
m = mass of human head = 4.8 kg
g = gravity = 9.8 m/s²
L = center of mass = 1.8 cm = 0.018 m
x = distance = 1.1 cm = 0.011 m
Replacing:
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