Answered: The spring-mounted 0.75-kg collar A… | bartleby

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The spring-mounted 0.75-kg collar A oscillates along the horizontal rod, which is rotating at the constant angular rate 0 = 9.0 rad/s.
At a certain instant, r is increasing at the rate of 740 mm/s. If the coefficient of kinetic friction between the collar and the rod is 0.42,
calculate the friction force F exerted by the rod on the collar at this instant.
Vertical
Answer: F= i
N

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