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According to the law of conservation of momentum, the total momentum of a system remains constant if no external forces act on it. This is applicable to:
- a)Objects at rest
- b)Objects moving at a constant speed
- c)Collisions between objects
- d)Objects in free fall
Correct answer is option 'C'. Can you explain this answer?
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According to the law of conservation of momentum, the total momentum o...
The law of conservation of momentum is applicable to collisions between objects. It states that the total momentum of a system of objects remains constant before and after the collision, provided no external forces act on the system.
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According to the law of conservation of momentum, the total momentum o...
Conservation of Momentum in Collisions
The law of conservation of momentum states that the total momentum of a system remains constant if no external forces act on it. This law is particularly applicable to collisions between objects.
Explanation:
- **Before the collision:** In a collision between objects, each object has its own initial momentum. The total momentum of the system is the sum of the individual momenta of the objects before the collision.
- **During the collision:** When the objects collide, they exert forces on each other which may change their individual momenta. However, the law of conservation of momentum states that the total momentum of the system (sum of individual momenta) remains constant during the collision, regardless of the forces involved.
- **After the collision:** After the collision, the objects may have different momenta compared to their initial momenta. However, the total momentum of the system (sum of individual momenta) remains the same as it was before the collision.
Example:
- In a head-on collision between two cars, the total momentum of the system (both cars) before the collision is equal to the total momentum of the system after the collision, provided no external forces like friction or air resistance are present.
Conclusion:
The law of conservation of momentum is a fundamental principle in physics that is especially applicable to collisions between objects. It helps in understanding and predicting the behavior of objects during collisions and reinforces the concept that momentum is conserved in isolated systems.
The law of conservation of momentum states that the total momentum of a system remains constant if no external forces act on it. This law is particularly applicable to collisions between objects.
Explanation:
- **Before the collision:** In a collision between objects, each object has its own initial momentum. The total momentum of the system is the sum of the individual momenta of the objects before the collision.
- **During the collision:** When the objects collide, they exert forces on each other which may change their individual momenta. However, the law of conservation of momentum states that the total momentum of the system (sum of individual momenta) remains constant during the collision, regardless of the forces involved.
- **After the collision:** After the collision, the objects may have different momenta compared to their initial momenta. However, the total momentum of the system (sum of individual momenta) remains the same as it was before the collision.
Example:
- In a head-on collision between two cars, the total momentum of the system (both cars) before the collision is equal to the total momentum of the system after the collision, provided no external forces like friction or air resistance are present.
Conclusion:
The law of conservation of momentum is a fundamental principle in physics that is especially applicable to collisions between objects. It helps in understanding and predicting the behavior of objects during collisions and reinforces the concept that momentum is conserved in isolated systems.
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According to the law of conservation of momentum, the total momentum of a system remains constant if no external forces act on it. This is applicable to:a)Objects at restb)Objects moving at a constant speedc)Collisions between objectsd)Objects in free fallCorrect answer is option 'C'. Can you explain this answer?
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