Generalization
What factors results increase in momentum?
What do you need to do with the contact time during a collision so that the force of impact will be reduced?
How could seatbelt apply the same principle of saving the passenger's life during crash?
How momentum and impulse are related?
What are their differences?
What factors results increase in momentum?
What do you need to do with the contact time during a collision so that the force of impact will be reduced?
How could seatbelt apply the same principle of saving the passenger's life during crash?
How momentum and impulse are related?
What are their differences?
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1. Mass and velocity are both directly proportional to the momentum. If you increase either mass or velocity, the momentum of the object increases proportionally. If you double the mass or velocity you double the momentum
2. Extending the time results in decreasing the force and thus minimizing the effect of the force in the collision. Merely increasing the collision time by a factor of ten would result in a tenfold decrease in the force.
3. The basic idea of a seat belt is simple. Wearing a belt keeps passengers from being ejected from a vehicle in a crash. When a vehicle stops abruptly, its passengers will also stop. The life saving difference is where on the body a force is applied to stop the person, and how suddenly it is applied.
4. The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v. In a collision, objects experience an impulse; the impulse causes and is equal to the change in momentum.