All Flashcards
What is the effect of increasing the time of impact during a collision?
Reduces the force experienced by the objects involved, given the impulse remains the same.
What is the effect of applying a force over a longer contact time?
Increases the impulse and thus the change in momentum of the object.
What happens to the total momentum in a closed system during a collision?
The total momentum remains constant; it is conserved.
What happens when objects stick together after a collision?
It is a perfectly inelastic collision, and kinetic energy is not conserved.
What is the effect of external forces on the conservation of momentum?
External forces prevent the conservation of momentum within the system.
What are the steps to solve conservation of momentum problems?
- Identify the system and ensure it's closed (no external forces). 2. Write down the initial momentum of all objects in the system. 3. Write down the final momentum of all objects in the system. 4. Set the total initial momentum equal to the total final momentum. . 5. Solve for the unknown quantities.
What is the effect of increasing the time of impact during a collision?
Increasing the time of impact reduces the force experienced, given a constant impulse (change in momentum).
What is the effect of applying a net force on an object for a certain time interval?
The object experiences an impulse, resulting in a change in its momentum.
What happens to the total momentum of a closed system during a collision?
The total momentum remains constant (is conserved).