5.) a 500-kg pig is standing at the top of a muddy hill on a rainy day. the hill is 100.0 m long with a
vertical drop of 30.0 m. the pig slips and begins to slide down the hill what is the pig's speed at the
bottom of the hill? use the law of conservation of energy
500

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?