The mass of Matts head is 5 kg and its centre of mass (A) is located LHead = 30 mm anterior to the axis of
rotation (atlanto-occipital joint, B) acting at an angle of 90°. The neck extensors act LNeck = 52 mm posterior
to the axis of rotation, at an angle of 0 = 128º. Matt is currently holding his head still. How much force do the
neck extensor muscles need to produce to keep the head from nodding (i. e. keep his head still). Assume
gravity is 9.8 m. s??
Answers: 3
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Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
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As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy
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From the perspective of an employee that effective channeling of work related information and concerns
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The mass of Matts head is 5 kg and its centre of mass (A) is located LHead = 30 mm anterior to the a...
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