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Grade: 9
        
Answer the following question. on momentum
Please explain if anwer will be 0 and why
 
5 months ago

Answers : (1)

Khimraj
1863 Points
							
As there is absence of external force so conservation of linear momentum will be applicable.
let we assume leftward velocity in positive direction and the velocity of obejects afer stick together is V. Then
(2m)(3v) +(m)(-2v) = (2m+m)V
So V = 4v/3
So total momentum is (3m)(4v/3) = 4mv.
And total kinetic energy = 0.5(3m)(4v/3)2 = (8/3)mv2.
Hope it clears if still you have doubt you can ask me.
If you like answer then please approve it.
5 months ago
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