Question: The device is used to pull the battery cable terminal C from the post of a battery. If the required pulling force is 85 lb,

The device is used to pull the battery cable terminal C from the post of a battery. If the required pulling force is 85 lb, determine the torque M that must be applied to the handle on the screw to tighten it. The screw has square threads, a mean diameter of 0.2 in., a lead of 0.08 in., and the coefficient of static friction is ?_s = 0.5.

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