Winches are used on sailboats to help support the forces exerted by the sails on the ropes (sheets) holding them in position. The winch shown is a post that will rotate in the clockwise direction (seen from above), but will not rotate in the counterclockwise direction. The sail exerts a tension TS — 800 N on the sheet, which is wrapped two complete turns around the winch. The coefficient of static friction between the sheet and the winch is μs = 0.2. What tension TC must the crew member exert on the sheet to prevent it from slipping on the winch?
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