Physics
Grade-8
Easy

Question

Law of conservation of momentum states that

  1. The sum of momenta of the two objects before collision is equal to the sum of momenta after the collision provided there is no external unbalanced force acting on them    
  2. Magnitude of the final momenta = magnitude of the initial moment.    
  3. m subscript 1 end subscript u subscript 1 end subscript plus m subscript 2 end subscript u subscript 2 end subscript equals m subscript 1 end subscript v subscript 1 end subscript plus m subscript 2 end subscript v subscript 2 end subscript    
  4. All the above    

hintHint:

  • The formula for the law of conservation of momentum is: m 1 u 1 + m 2 u 2 = m 1 v 1 + m 2 v 2.

The correct answer is: All the above


    •  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.
    • The formula for the law of conservation of momentum is: m 1 u 1 + m 2 u 2 = m 1 v 1 + m 2 v 2.
    • So all the above