a 12g Bullet is fired into a block of wood with a speed of V equals 200 m/s. The block rests on a frictionless surface is attached to an ideal horizontal Spring that is a Spring constant of 200. The block with the invented bullet compressed the Spring a distance of 30 cmeters to the right before momentarily coming to a stop. Determine the mass of the wooden block​

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?