Discussion 5

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Conservation of Momentum

1. A 200 g IOLab device and a 15 kg bicycle are pushed from rest on a frictionless surface. The same constant force is applied to each. Compare the momenta of the IOLab device and the bicycle after they have both moved 1 meter. 
2. A 200 g IOLab device and a 15 kg bicycle are pushed from rest on a frictionless surface. The same constant force is applied to each for 1 second and then the force is removed. Compare the momenta of the IOLab device and the bicycle after the force has been removed. 
3. A 1000 kg car and a 20,000 kg truck engage in a head on collision. Compare the impulse on the car and the truck. 
4. A moving object collides with an object at rest. Are there any conditions under which both objects will be at rest after the collision? If so, describe this scenario. If not, explain why this is not possible. 
5. A moving object collides with an object at rest. Are there any conditions under which only one of the objects will be at rest after the collision? If so, describe this scenario. If not, explain why this is not possible. 
6. Two ice skaters face each other and push away from each other from rest. One ice skater has a greater mass than the other. Compare the resulting momenta of each ice skater. 
7. Two ice skaters face each other and push away from each other from rest. One ice skater has a greater mass than the other. Compare the resulting velocity of each ice skater. 
8. Two cars engage in a head on collision. Compare the damage to the driver and passengers in the case where the cars stick together versus if they bounce off one another.