A particle of mass m with an initial velocity ui + 2uĵ collides with a particle of mass 3m at rest. After collision, the two particles stick together and the combined particle moves with a velocity vî + v'ĵ. Which of the following is incorrect?

Option 1 -

v = v'/2

Option 2 -

v = 2v'

Option 3 -

v = u/4

Option 4 -

v'=u/2

3 Views | Posted 3 weeks ago

Asked by Shiksha User

1 Answer

Answered by

Vishal Baghel | Contributor-Level 10

3 weeks ago

Correct Option - 2

Detailed Solution:

Applying conservation of momentum, m (ui + 2uj) + 3m (0) = 4m (vi +vj)
⇒ v = u / 4 and v' = u / 2

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