To lower a pack of weight W to the hiker at C, the hikers at A and

Question:

To lower a pack of weight W to the hiker at C, the hikers at A and B have passed a rope ADB through a ring attached to the pack at D. The hiker at C is 64 ft below A and guides the pack using rope CD. Knowing that at the instant shown the pack is at rest and that the tension in rope CD is 17 lb, determine the tension in rope ADB and the weight of the pack.

To lower a pack of weight rope ADB and the weight of the pack.