11. Each croquet ball in a set has a mass of 0.53kg. The gréen strikes the blue ball, which is at rest. Assuming that the balls slide on a frictionless surface and all collisions are head-on, find the final speed of the blue ball if the green ball continues moving after the collision at 2.5 m/s in the same direction.

A truck (m=5000 kg) initially moving at 5 m/s slams into the back of a car (m=1,000 kg) that is sitting at an intersection. The bumpers lock, and the two vehicles move off together. In the instant right after the collision, what is the speed of this wreckage? How much energy is dissipated? v = 5 m/s 100-160 m=5,000 kg m=1,000 kg

1. You want to drive cart A, initially at rest, through a piece of paper by launching cart B against it. Both carts have the same mass, and you've determined that the larger the kinetic energy of an object, the more easily it goes through a piece of paper. One side of cart B is equipped with velcro pads so that it sticks to cart A; the other side is smooth and collides elastically. Which side of cart B do you use? Explain briefly. Tay V velcro or no velcro? cart B cart A paper abbas 0 0 od to see srit bus eass GO od neswaed noisont o ameiomeco adr (0) bloo og to basqa tastermo municios en af tailwau 08 to auibarselonio, al cases b your toy abila ceso a dovedit ad og slan 20-30°

1. In a perfectly inelastic collision, two objects collide and stick together. Is momentum conserved in the collision? Is energy conserved? Why or why not? A simple example might help.