Final answer:
To calculate the minimum GCWR that Mike needs to go water skiing, you can use the formula: Minimum GCWR = Curb Weight of Truck + Weight of Unloaded Trailer + Weight of Boat and Equipment + Payload - GTW of Trailer.
Step-by-step explanation:
To determine the minimum GCWR that Mike needs to go water skiing, we need to calculate the total weight of the trailer, the boat, and the water skiing equipment. Given that the weight of the unloaded trailer is 500 lbs, the weight of the boat and equipment is 3000 lbs, and the payload of the truck is 1000 lbs (including tongue load), we can calculate the minimum GCWR using the formula: Minimum GCWR = Curb Weight of Truck + Weight of Unloaded Trailer + Weight of Boat and Equipment + Payload - GTW of Trailer. Substituting the given values, we get: Minimum GCWR = 5000 lbs + 500 lbs + 3000 lbs + 1000 lbs - 3000 lbs = 7000 lbs. Therefore, the Minimum GCWR that Mike needs to go water skiing is 7000 lbs, so the correct answer is not provided.