This is a drawbridge, held in place by a cable. The hinge is frictionless. This problem and the next two involving this situation use American units: weight and other forces are in pounds, and torque is in pound-feet. Calculate the torque (positive number) on the drawbridge due to its weight, in lb*ft. (Use the hinge as your axis.) The drawbridge's weight: W = Mg = 5900 lb Its length: ℓ = 60 ft The height the cable reaches: h = 20 ft

This is a drawbridge, held in place by a cable. The hinge is frictionless. This problem and the next two involving this situation use American units: weight and other forces are in pounds, and torque is in pound-feet. Calculate the torque (positive number) on the drawbridge due to its weight, in lb*ft. (Use the hinge as your axis.) The drawbridge's weight: W = Mg = 5900 lb Its length: ℓ = 60 ft The height the cable reaches: h = 20 ft

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