# Defining a Coordinate System in Torque and Pulley Problems

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When choosing which direction of the system will be positive and which will be negative, do we always have to choose the counterclockwise direction to be positive in free body diagrams involving torque(s) applied on pulleys with mass? Will points be taken off on exams if we define the positive direction to be clockwise, if that is what makes intuitive sense in a given problem of this type?