**Sorry I just noticed I posted this is the wrong forum, I don't see any delete button could a moderator move this to coursework/homework forum? This is a problem that I kept getting wrong and never understood why. I'm not asking for answers just help on tackling the question. I have tried it before and I only got a. right. I am paraphrasing the question by the way. 11. There is a slingshot. It can be stretched 2.00 meters from its rest position with a force of 760N. They place a 6.50kg bowling ball in the sling and pull it down 2.90 meters from rest position. There is only vertical movement. A)Find spring constant. I got k=380N/m. B)What is the total energy stored in the sling when the bowling ball is ready to be fired. I tried Energy=0.5(k)(x)^2 where k is from A) and x is 2.90 meters. I got 1597.9 J C)Total energy of bowling ball when it leaves the slingshot. I tried Energy stored in spring. 1597.9 J D)What is the kinetic energy when the ball leaves the sling? I tried Energy stored in spring - potential energy used to gain 2.90 meters. 1413.17 J F)Ignoring air Resistance what is maximum height. I tried kinetic energy = potential energy (Solving for height in potential energy) ~22.184m + 2.9m from rest point.