How much work is done lifting a 15 pound object from the ground to the top of a 25 foot building if the cable used weighs 1.5 pounds per foot?               

Question 2

A bucket begins weighing 20 pounds, including the sand it holds. The bucket is to be lifted to the top of a 45 foot tall building by a rope of negligible weight. However, the bucket has a hole in it, and leaks 0.3 pounds of sand each foot it is lifted. Find the work done lifting the bucket to the top of the building.