The Great Sandini is a 60 kg circus performer who is shot from a cannon (actually a spring gun) You don't find many men of his caliber so you help him design a new gun. This new gun has a very large spring with a very small mass and a force constant of 1400 N/m that he will compress with a force of 7000 N . The inside of the gun barrel is coated with Teflon so the average friction force will be only 43 N during the distant of 5. 0 m that he moves in the barrel.
a) At what speed will he emerge from the end of the barrel a distance 1. 6 m above his initial rest position!?