Assignment:
1. A 5-kg fish swallows an absentminded 1-kg fish swimming towards it at a velocity that brings both fish to a halt immediately after lunch. What is the velocity of the smaller fish before it becomes lunch?
2. Use the concepts of this chapter to describe what would happen if you fire a gun that has bullet ten times as massive as the gun.
3. An apple falls from a tree and strikes the ground without bouncing. What happens to its momentum? Is momentum conserved?
4. You and your friend toss a ball back and forth in the middle aisle of an airplane in flight. Does the kinetic energy of the ball depend on the speed of the airplane?