Soo i have my final for Calc coming and i r scared shitless. I was wondering if i can get some help on these 2 word problems i have.
1)There is a cable that is 40feet long and weighs 30lbs. It is hanging over the side of a building. How much work is Req’d to pull 10feet of it up?
2)A Chain lying on the ground is 10m long and its mass is 80KG. How much work is required to raise ONE END of the chain to a height of 6m.
First problem i am getting like 525ftlbs but im not sure if that is correct.