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A nucleus moving with velocity bar(v) em...

A nucleus moving with velocity `bar(v)` emits an `alpha`-particle. Let the velocities of the `alpha`-particle and the remaining nucleus be `bar(v)_(1)` and `bar(v)_(2)` and their masses be `m_(1)` and `(m_2)` then,

A

`vecv, vecv_(1)` and `vecv_(2)` must be parallel to each other.

B

None of the two of `vecv, vecv_(1)` and `vecv_(2)` should be parallel to each other

C

`vecv_(1) + vecv_(2)` must be parallel to `vecv`

D

`m_(1)vecv_(1) + m_(2) vecv_(2)` must be parallel to `vecv`

Text Solution

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The correct Answer is:
D
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