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  1. It is a vector quantity. Conservation of momentum is a crucial law of physics. It expresses that the total momentum of a detached or isolated system/framework is conserved. As such, the total momentum of a system of objects stays steady during any interaction, if no external force follows up on the system. The total momentum is the vector sum ...

  2. From $$ (i), (ii)$$ and $$ (iii)$$, $$\Rightarrow$$ Final momentum $$ (p_ {f})$$ = Initial momentum $$ (p_ {i})$$. Thus, we conclude that during the interaction between the two balls, momentum before collision is equal to total momentum after collision. Thus, the momentum of the system is conserved in the absence of external forces.

  3. Law of conservation of momentum states that total momentum of system remains conserved in the absence of external force. Proof: Consider a body of mass m1 moving with velocity U1, striking against another body of mass m2 moving with velocity U2.

  4. Linear Momentum of a System of Particles. Linear momentum is a product of the mass (m) of an object and the velocity (v) of the object. If an object has higher momentum, then it harder to stop it. The formula for linear momentum is p = mv. The total amount of momentum never changes, and this property is called conservation of momentum.

  5. The law of conservation of momentum is based on Newton’s third law because the law of conservation of momentum can be derived from the law of action and reaction, which states that every force has a reciprocating equal and opposite force. If you push against a wall, the wall pushes back against you with the same amount of force.

  6. Change in the momentum of B = m 2 (v 2 − u 2). ..... eq. 2. During the collision, let A impart an average force equal to F B A on B and let B exert an average F A B on A. We know that from third law of motion F B A = − F A B ..... eq. 3. We know that, force equals change in momentum per unit time, therefore: F B A = m 2 × a 2 = m 2 (v 2 ...

  7. Derivation of Conservation of Momentum. Let us consider a situation wherein: a truck of mass m 1, velocity u 1 and its momentum = m 1 u 1 and a car of mass m 2, velocity u 2 and its momentum m 2 u 2; are moving in the same direction but with different speeds. Therefore, total momentum=m 1 u 1 + m 2 u 2. Now suppose the car and truck collide for ...

  8. Assertion :Kepler's second law can be understood by conservation of angular momentum principle. Reason: Kepler's second law is related with areal velocity which can further be proved to be based on conservation of angular momentum as (d A / d t) = (r 2 ω) / 2. Both Assertion and Reason are correct and Reason is the correct explanation for ...

  9. A bullet of mass 10 g moving with velocity of 1.5 m/s hits a thick wooden plank of mass 90 g. The plank is initially at rest, but when it gets hit by the bullet, the bullet remains in the plank and both move with a certain speed.

  10. Law of conservation of momentum states that when two objects collide with each other , the sum of their linear momentum always remains same or we can say conserved and is not effected by any action, reaction only in case is no external unbalanced force is applied on the bodies. Let, m A = Mass of ball A. m B = Mass of ball B. u A = initial ...