Inelastic collisions (where they stick together)
Page 10: Inelastic Collisions (where they stick together)
Problems
1. A 2000 kg train car is not moving. What is its momentum?
2. A 2000 kg train is moving at 10 m/s. What is its momentum?
3. A 2000 kg train car moving 1 m/s couples with another 2000 kg train car that is stationary. How fast are the coupled cars moving after the collision?
4. A 20 ton train car moving at 3 m/s couples with a 10 ton train car that is stationary. How fast do the coupled train cars move away?
5. A 50 kg running back moving at 4 m/s, runs into a 100 kg lineman who is standing still. If the lineman grabs him, how fast will the two move away from the collision?
6. A 0.1 kg bullet traveling at 100 m/s hits a 2 kg wood block that is not moving. If the bullet embeds itself into the block, how fast does the block and bullet move?
7. A 0.1 kg bullet traveling at 100 m/s hits a 100 kg man standing still. If the bullet embeds into the man’s chest, how fast will the man be thrown backwards?
8. A 0.1 kg bullet traveling at 100 m/s hits a 50 kg man standing still. If the bullet embeds into the man’s chest, how fast will the man be thrown backwards?
9. A 500 kg car runs into another 500 kg car that is at a stop sign. If they both stick together and move at 4 m/s, how fast was the moving car going?
10. A 500 kg car moving at 20 m/s hits a 2000 kg truck at a stop sign. If the car and truck move off together, how fast will they be traveling?