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Linear Momentum Conservation law Video Lecture | Basic Physics for IIT JAM

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FAQs on Linear Momentum Conservation law Video Lecture - Basic Physics for IIT JAM

1. What is the law of conservation of linear momentum?
Ans. The law of conservation of linear momentum states that the total linear momentum of a closed system remains constant if no external forces act on it. This means that the initial momentum of the system is equal to the final momentum of the system.
2. How is linear momentum defined?
Ans. Linear momentum is defined as the product of an object's mass and its velocity. It is a vector quantity, meaning it has both magnitude and direction. The formula for linear momentum is p = mv, where p is the momentum, m is the mass, and v is the velocity.
3. Can linear momentum be transferred between objects?
Ans. Yes, linear momentum can be transferred between objects. When two objects collide, the momentum of one object can be transferred to the other object. This transfer of momentum is governed by the law of conservation of linear momentum, which states that the total momentum before the collision is equal to the total momentum after the collision.
4. What are some real-life examples of the conservation of linear momentum?
Ans. Some real-life examples of the conservation of linear momentum include billiard balls colliding on a pool table, a car crash, and a rocket launching into space. In each of these scenarios, the total momentum of the system remains constant unless acted upon by external forces.
5. How does the conservation of linear momentum relate to Newton's third law of motion?
Ans. Newton's third law of motion states that for every action, there is an equal and opposite reaction. This law is closely related to the conservation of linear momentum because the transfer of momentum between objects in a collision is a result of the forces exerted on each other due to Newton's third law. The conservation of momentum ensures that the total momentum of the system remains constant, even though the individual momenta of the objects may change.
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