Please explain each step if you can. Below is the attached question. Thank you.

3. We are lifting a leaky bag of sand that has an initial weight of 144 lbs to a height of 18 ft . When bag reaches 18 f t, it only contains half of the sand. Assume o it leaks at a constant rate and the cable is pulled at a constant speed. Weights of the bag and the cable are insignicant. (a) Draw a sketch and indicate element and how dis- tance is measured. (b) Draw graph that represent the weight of sand bag f (y) lbs vs distance from ground y ft. Find the equation y) 18ft (c) Setup an integral to calculate the work required to lift the bag to a height of 18 ft