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Second part asks: Find the direction of the contact force Fc if the direction is below the horizontal, enter a negative value. A student's head

Second part asks: Find the direction of the contact force Fc if the direction is below the horizontal, enter a negative value.

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A student's head is bent over her physics book. The head weighs P = 23.1 N and is supported by the muscle force I'm exerted by the neck extensor muscles and by the contact force Fc exerted at the atlantooccipital joint. Given that the magnitude of Fm is 60.0 N and is directed 35.0 below the horizontal. PN es Find the magnitude of the contact force F

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