Question
Two pieces of clay are moving directly toward each other. When they collide, they stick together...
Two pieces of clay are moving directly toward each other. When they collide, they stick together and move as one piece. One piece having mass 300 300 g is moving to the right at a speed of 1 1 m/s. The other piece has mass 600 600 g and is moving to the left at a speed of 0.75 0.75 m/s.
a. Use momentum conservation to determine the velocity of the combined clay piece after they collide. (Note: you can treat this as a one-dimensional problem, but since you're computing velocity not speed, you need to include an appropriate sign. Assume the positive axis points to the right; therefore use a positive sign to indicate motion to the right, and a negative sign to indicate motion to the left.)
b. What fraction of the total initial kinetic energy is lost during the collision? In other words what is KEi−KEf/KEi?
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